Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 21.0.2, 20.3.15, and 19.2.17, A Stored Cross-Site Scripting (XSS) vulnerability has been identified in the Angular Template Compiler. It occurs because the compiler's internal security schema is incomplete, allowing attackers to bypass Angular's built-in security sanitization. Specifically, the schema fails to classify certain URL-holding attributes (e.g., those that could contain javascript: URLs) as requiring strict URL security, enabling the injection of malicious scripts. This vulnerability is fixed in 21.0.2, 20.3.15, and 19.2.17.
Fix
Patch, vendor advisory and mitigation references on NVD 1
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.5 · angularNVD modified 2026-10-18 18:10
Affected (CPE criteria) 1
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*
References 4
- https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a Patch
- https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- https://cert-portal.siemens.com/productcert/html/ssa-485750.html