6.1

CVE-2026-88060

Exploit

Angular: SSR XSS via Unescaped <template> Content Across DocumentFragment Boundaries in Fallback Raw-Content Elements

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Angular ≫ Angular SwPlatform node.js Version >= 19.0.0 <= 19.2.25
Angular ≫ Angular SwPlatform node.js Version >= 20.0.0 < 20.3.30
Angular ≫ Angular SwPlatform node.js Version >= 21.0.0 < 21.2.22
Angular ≫ Angular SwPlatform node.js Version >= 22.0.0 < 22.1.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.7% 0.51
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.1 2.8 2.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 8.6 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-116 Improper Encoding or Escaping of Output

The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://github.com/angular/angular/releases/tag/v20.3.30
Release Notes
https://github.com/angular/angular/releases/tag/v21.2.22
Release Notes
https://github.com/angular/angular/releases/tag/v22.1.4
Release Notes
https://github.com/angular/angular/commit/73d8bbd27cb46495426d4132975a1355b47ad915
Patch
https://github.com/angular/angular/commit/89b20568dfaee1ec8e0b3bcf1872acdddd2f4fef
Patch
https://github.com/angular/angular/commit/ba3bc47b20b3d12f5eb141ec9c651373ae4d15e8
Patch
https://github.com/angular/domino/commit/04f987dc08ff3736b427f50941adf1722458528f
Patch
https://github.com/angular/angular/security/advisories/GHSA-v3p8-whq6-r5jg
Vendor Advisory
Exploit