CVE-2025-66412
EPSS 0.02%Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes
Description
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.
Affected packages (2)
- Debian/angular.jsfrom 0
- npm/@angular/compiler>= 21.0.0-next.0, < 21.0.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-66412
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-66412
- PATCHhttps://github.com/angular/angular
- WEBhttps://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a
- WEBhttps://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49