Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| angular | angular | affected |
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Configuration 1 [-]
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No data.
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| Angular | Angular |
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| Source | ID | Title |
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Github GHSA |
GHSA-v3p8-whq6-r5jg | Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.362% probability within 30 days)
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| CPEs | cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:* | |
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cvssV3_1
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| First Time appeared |
Angular
Angular angular |
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| Vendors & Products |
Angular
Angular angular |
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ssvc
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| Description | Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular server-side rendering (SSR) in @angular/platform-server serializes untrusted input inside template content nested in fallback raw-content elements such as noscript, iframe, noembed, and noframes. The Domino serializer's fallbackRawContentTags traversal stopped at the DocumentFragment used by template.content, so matching closing tags in xmp, style, script, comments, or text nodes were not escaped. Standard interpolation with comments or text nodes is reachable without relaxed schemas; literal xmp or style requires CUSTOM_ELEMENTS_SCHEMA or NO_ERRORS_SCHEMA, while Renderer2 imperative DOM construction is unconditionally affected. When HTML5 RAWTEXT browser parsing encounters the unescaped closing tag, it exits the fallback container and interprets trailing markup as active DOM elements, enabling arbitrary JavaScript execution. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4. | |
| Title | Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements | |
| Weaknesses | CWE-116 CWE-79 |
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| References |
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| Metrics |
cvssV4_0
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