---
cve: "CVE-2025-66412"
severity: "HIGH"
cvss: 8.5
epss: "40%"
vendor: "angular"
kev: false
exploited: false
published: "2025-12-01 23:15:53"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T01:58:10+02:00"
---

# CVE-2025-66412

> 8.5 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |

## Patch verfügbar (OSV)

- 5b4fd221946699b2d21e020c1580226737d386b8 (Commit)
- 4755bbd94964f27921ec203fc1a9233a01c84792 (Commit)

## Referenzen

- <https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49>
- <https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a>
- <https://cert-portal.siemens.com/productcert/html/ssa-253495.html>
- <https://cert-portal.siemens.com/productcert/html/ssa-485750.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-66412) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_