161 lines
7.0 KiB
JSON
161 lines
7.0 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-2026-41887",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-04-22T15:11:54.671Z",
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"datePublished": "2026-05-08T15:50:38.484Z",
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"dateUpdated": "2026-05-08T19:26:53.642Z"
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},
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"containers": {
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"cna": {
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"title": "Flarum: Path traversal in LESS parser via theme color settings (incomplete fix for CVE-2023-27577)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-22",
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"lang": "en",
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"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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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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"descriptions": [
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{
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"cweId": "CWE-918",
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"lang": "en",
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"description": "CWE-918: Server-Side Request Forgery (SSRF)",
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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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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 4.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"privilegesRequired": "HIGH",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/flarum/framework/security/advisories/GHSA-xjvc-pw2r-6878",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/flarum/framework/security/advisories/GHSA-xjvc-pw2r-6878"
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},
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{
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"name": "https://github.com/flarum/framework/commit/2d90a1f19f0e46f8c7e1b07c48ba74b5e38f8410",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/flarum/framework/commit/2d90a1f19f0e46f8c7e1b07c48ba74b5e38f8410"
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},
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{
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"name": "https://github.com/flarum/framework/releases/tag/v1.8.16",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/flarum/framework/releases/tag/v1.8.16"
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},
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{
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"name": "https://github.com/flarum/framework/releases/tag/v2.0.0-rc.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/flarum/framework/releases/tag/v2.0.0-rc.1"
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}
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],
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"affected": [
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{
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"vendor": "flarum",
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"product": "framework",
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"versions": [
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{
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"version": "< 1.8.16",
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"status": "affected"
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},
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{
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"version": ">= 2.0.0-beta.1, < 2.0.0-rc.1",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-08T15:50:38.484Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Flarum is open-source forum software. Prior to versions 1.8.16 and 2.0.0-rc.1, Flarum's patch for CVE-2023-27577 restricted the @import and data-uri() LESS features in the custom_less setting, but the same restriction was never applied to other settings registered as LESS config variables (for example theme_primary_color and theme_secondary_color, as well as any key registered via Extend\\Settings::registerLessConfigVar()). Those values are interpolated verbatim into the LESS source at compile time, allowing an authenticated administrator to craft a theme-color value that injects an arbitrary @import directive into the compiled forum.css. Because the underlying LESS parser honours @import (inline) '<path>', an attacker can read arbitrary files reachable by the PHP process (local file inclusion) or trigger outbound HTTP(S) requests (server-side request forgery). This issue has been patched in versions 1.8.16 and 2.0.0-rc.1."
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}
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],
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"source": {
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"advisory": "GHSA-xjvc-pw2r-6878",
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"discovery": "UNKNOWN"
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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/flarum/framework/security/advisories/GHSA-xjvc-pw2r-6878",
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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": "2026-05-08T19:26:06.629218Z",
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"id": "CVE-2026-41887",
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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": "no"
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},
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{
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"Technical Impact": "partial"
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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": "2026-05-08T19:26:53.642Z"
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}
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}
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]
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}
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} |