286 lines
14 KiB
JSON
286 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-8467",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-05-13T11:44:40.790Z",
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"datePublished": "2026-05-20T13:35:29.018Z",
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"dateUpdated": "2026-05-27T15:41:02.357Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"Elixir.PhoenixStorybook.Rendering.ComponentRenderer",
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"Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive",
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"Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers"
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],
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"packageName": "phoenix_storybook",
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"packageURL": "pkg:hex/phoenix_storybook",
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"product": "phoenix_storybook",
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"programFiles": [
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"lib/phoenix_storybook/rendering/component_renderer.ex",
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"lib/phoenix_storybook/live/story/playground_preview_live.ex",
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"lib/phoenix_storybook/helpers/extra_assigns_helpers.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.PhoenixStorybook.Rendering.ComponentRenderer':attributes_markup/1"
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},
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{
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"name": "'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handle_event/3"
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},
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{
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"name": "'Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers':handle_set_variation_assign/3"
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}
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],
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"repo": "https://github.com/phenixdigital/phoenix_storybook",
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"vendor": "phenixdigital",
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"versions": [
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{
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"lessThan": "1.1.0",
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"status": "affected",
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"version": "0.5.0",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"Elixir.PhoenixStorybook.Rendering.ComponentRenderer",
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"Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive",
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"Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers"
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],
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"packageName": "phenixdigital/phoenix_storybook",
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"packageURL": "pkg:github/phenixdigital/phoenix_storybook",
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"product": "phoenix_storybook",
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"programFiles": [
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"lib/phoenix_storybook/rendering/component_renderer.ex",
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"lib/phoenix_storybook/live/story/playground_preview_live.ex",
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"lib/phoenix_storybook/helpers/extra_assigns_helpers.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.PhoenixStorybook.Rendering.ComponentRenderer':attributes_markup/1"
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},
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{
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"name": "'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handle_event/3"
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},
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{
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"name": "'Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers':handle_set_variation_assign/3"
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}
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],
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"repo": "https://github.com/phenixdigital/phoenix_storybook",
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"vendor": "phenixdigital",
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"versions": [
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{
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"lessThan": "56ab8464d4375fa52db806148a06cce126ad481d",
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"status": "affected",
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"version": "e35379dfe2ef1a71b141899e36f431017c55265d",
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"versionType": "git"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:phenixdigital:phoenix_storybook:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.1.0",
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"versionStartIncluding": "0.5.0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Nick Mykhailyshyn"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Cenk Kücük"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Christian Blavier"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>Code Injection vulnerability in phenixdigital phoenix_storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation.</p><p>The <tt>psb-assign</tt> WebSocket event handler in <tt>'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handle_event/3</tt> accepts arbitrary attribute names and values from unauthenticated clients. These values are passed to <tt>'Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers':handle_set_variation_assign/3</tt>, which stores them verbatim. When rendering, <tt>'Elixir.PhoenixStorybook.Rendering.ComponentRenderer':attributes_markup/1</tt> interpolates binary attribute values directly into a HEEx template string as <tt>name=\"<val>\"</tt> without escaping double quotes or HEEx expression delimiters. An attacker can supply a value containing a closing quote followed by a HEEx expression block (e.g. <tt>foo\" injected={EXPR} bar=\"</tt>), which causes <tt>EXPR</tt> to be treated as an inline Elixir expression. The resulting template is compiled via <tt>EEx.compile_string/2</tt> and executed via <tt>Code.eval_quoted_with_env/3</tt> with full <tt>Kernel</tt> imports and no sandbox, giving the attacker arbitrary code execution on the server.</p><p>This issue affects phoenix_storybook from 0.5.0 before 1.1.0.</p>"
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}
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],
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"value": "Code Injection vulnerability in phenixdigital phoenix_storybook allows unauthenticated remote code execution via unsanitized attribute value interpolation in HEEx template generation.\n\nThe psb-assign WebSocket event handler in 'Elixir.PhoenixStorybook.Story.PlaygroundPreviewLive':handle_event/3 accepts arbitrary attribute names and values from unauthenticated clients. These values are passed to 'Elixir.PhoenixStorybook.Helpers.ExtraAssignsHelpers':handle_set_variation_assign/3, which stores them verbatim. When rendering, 'Elixir.PhoenixStorybook.Rendering.ComponentRenderer':attributes_markup/1 interpolates binary attribute values directly into a HEEx template string as name=\"<val>\" without escaping double quotes or HEEx expression delimiters. An attacker can supply a value containing a closing quote followed by a HEEx expression block (e.g. foo\" injected={EXPR} bar=\"), which causes EXPR to be treated as an inline Elixir expression. The resulting template is compiled via EEx.compile_string/2 and executed via Code.eval_quoted_with_env/3 with full Kernel imports and no sandbox, giving the attacker arbitrary code execution on the server.\n\nThis issue affects phoenix_storybook from 0.5.0 before 1.1.0."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-242",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-242 Code Injection"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 9.5,
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"baseSeverity": "CRITICAL",
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"privilegesRequired": "NONE",
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"subAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "HIGH",
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"subIntegrityImpact": "HIGH",
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"userInteraction": "NONE",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-94",
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"description": "CWE-94 Improper Control of Generation of Code ('Code Injection')",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-05-27T15:41:02.357Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/phenixdigital/phoenix_storybook/security/advisories/GHSA-55hg-8qxv-qj4p"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-8467.html"
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},
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{
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-8467"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/phenixdigital/phoenix_storybook/commit/56ab8464d4375fa52db806148a06cce126ad481d"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "Unauthenticated remote code execution via HEEx template injection in phoenix_storybook playground",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/phenixdigital/phoenix_storybook/security/advisories/GHSA-55hg-8qxv-qj4p",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-21T13:57:52.803277Z",
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"id": "CVE-2026-8467",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-21T13:58:36.035Z"
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}
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}
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]
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}
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} |