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vuln-cve/data/2026/58xxx/CVE-2026-58228.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-58228",
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"state": "PUBLISHED",
"assignerShortName": "EEF",
"dateReserved": "2026-06-29T18:54:08.633Z",
"datePublished": "2026-07-13T18:04:30.636Z",
"dateUpdated": "2026-07-14T04:15:01.996Z"
},
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"'Elixir.Phoenix.LiveView.Utils'"
],
"packageName": "phoenix_live_view",
"packageURL": "pkg:hex/phoenix_live_view",
"product": "phoenix_live_view",
"programFiles": [
"lib/phoenix_live_view/utils.ex"
],
"programRoutines": [
{
"name": "'Elixir.Phoenix.LiveView.Utils':valid_destination!/2"
},
{
"name": "'Elixir.Phoenix.LiveView.Utils':valid_live_navigation_destination!/2"
}
],
"repo": "https://github.com/phoenixframework/phoenix_live_view",
"vendor": "phoenixframework",
"versions": [
{
"lessThan": "1.2.7",
"status": "affected",
"version": "1.2.2",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"'Elixir.Phoenix.LiveView.Utils'"
],
"packageName": "phoenixframework/phoenix_live_view",
"packageURL": "pkg:github/phoenixframework/phoenix_live_view",
"product": "phoenix_live_view",
"programFiles": [
"lib/phoenix_live_view/utils.ex"
],
"programRoutines": [
{
"name": "'Elixir.Phoenix.LiveView.Utils':valid_destination!/2"
},
{
"name": "'Elixir.Phoenix.LiveView.Utils':valid_live_navigation_destination!/2"
}
],
"repo": "https://github.com/phoenixframework/phoenix_live_view",
"vendor": "phoenixframework",
"versions": [
{
"lessThan": "86165533e311469a1b62093fd182d9d874de8106",
"status": "affected",
"version": "4b63216ae68886db99cf7772af23372d76c40e7e",
"versionType": "git"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.2.7",
"versionStartIncluding": "1.2.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Barna Kovacs"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Steffen Deusch"
},
{
"lang": "en",
"type": "analyst",
"value": "José Valim"
},
{
"lang": "en",
"type": "analyst",
"value": "Jonatan Männchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>Cross-site scripting vulnerability in phoenixframework phoenix_live_view allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session.</p><p>The <tt>Phoenix.LiveView.Utils.valid_destination!/2</tt> and <tt>Phoenix.LiveView.Utils.valid_live_navigation_destination!/2</tt> functions in <tt>lib/phoenix_live_view/utils.ex</tt> rely on an internal <tt>uri_scheme/1</tt> helper that only detects a scheme when the input's first byte is an ASCII letter. Inputs beginning with an ASCII control character or space fall through to a nil-returning clause, causing the URL to be treated as a safe relative path.</p><p>Standard browsers implement the WHATWG URL parser, which strips leading C0 control and space characters before parsing. As a result, an input such as <tt>&quot; javascript:alert(1)&quot;</tt> is passed unchanged into <tt>&lt;.link href={...}&gt;</tt> and, when clicked, is parsed by the browser as a <tt>javascript:</tt> URL that executes attacker-controlled script in the victim's session.</p><p>Applications that render user-supplied URLs (for example profile links, redirect targets, or external references) via <tt>&lt;.link href={...}&gt;</tt> are affected.</p><p>This issue affects phoenix_live_view: from 1.2.2 before 1.2.7.</p>"
}
],
"value": "Cross-site scripting vulnerability in phoenixframework phoenix_live_view allows an attacker to bypass URL scheme validation and execute JavaScript in a victim's browser session.\n\nThe Phoenix.LiveView.Utils.valid_destination!/2 and Phoenix.LiveView.Utils.valid_live_navigation_destination!/2 functions in lib/phoenix_live_view/utils.ex rely on an internal uri_scheme/1 helper that only detects a scheme when the input's first byte is an ASCII letter. Inputs beginning with an ASCII control character or space fall through to a nil-returning clause, causing the URL to be treated as a safe relative path.\n\nStandard browsers implement the WHATWG URL parser, which strips leading C0 control and space characters before parsing. As a result, an input such as \" javascript:alert(1)\" is passed unchanged into <.link href={...}> and, when clicked, is parsed by the browser as a javascript: URL that executes attacker-controlled script in the victim's session.\n\nApplications that render user-supplied URLs (for example profile links, redirect targets, or external references) via <.link href={...}> are affected.\n\nThis issue affects phoenix_live_view: from 1.2.2 before 1.2.7."
}
],
"impacts": [
{
"capecId": "CAPEC-63",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-63 Cross-Site Scripting (XSS)"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "ACTIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF",
"dateUpdated": "2026-07-14T04:15:01.996Z"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/phoenixframework/phoenix_live_view/security/advisories/GHSA-5cgh-g58j-m9cq"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-58228.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-58228"
},
{
"tags": [
"patch"
],
"url": "https://github.com/phoenixframework/phoenix_live_view/commit/86165533e311469a1b62093fd182d9d874de8106"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Scheme validation bypass in Phoenix.LiveView.Utils leads to XSS via <.link>",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>Strip leading ASCII control and space bytes (code points 0x00 through 0x20) from any untrusted URL before passing it to <tt>&lt;.link href={...}&gt;</tt>, or reject such inputs outright. This aligns application-level validation with the WHATWG URL parser used by browsers and prevents the scheme-detection bypass.</p>"
}
],
"value": "Strip leading ASCII control and space bytes (code points 0x00 through 0x20) from any untrusted URL before passing it to <.link href={...}>, or reject such inputs outright. This aligns application-level validation with the WHATWG URL parser used by browsers and prevents the scheme-detection bypass."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/phoenixframework/phoenix_live_view/security/advisories/GHSA-5cgh-g58j-m9cq",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-13T18:58:11.563760Z",
"id": "CVE-2026-58228",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-13T18:58:51.407Z"
}
}
]
}
}
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