Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes_CVE-2025-66412

{
    "lastseen": "",
    "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.",
    "published": "2025-12-01T22:35:59.211Z",
    "modified": "2025-12-01T22:35:59.211Z",
    "type": "cve",
    "title": "Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes",
    "source": "GitHub_M",
    "references": "https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49\nhttps://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a",
    "id": "CVE-2025-66412",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "angular angular >= 21.0.0-next.0 < 21.0.2\nangular angular >= 20.0.0-next.0 < 20.3.15\nangular angular >= 19.0.0-next.0 < 19.2.17\nangular angular <= 18.2.14",
    "sourceHref": "",
    "cvss": {
        "score": 8.5,
        "severity": "HIGH",
        "vector": "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "angular",
    "version": ">= 21.0.0-next.0 < 21.0.2",
    "vendor": "angular",
    "ai_description": "Stored Cross-Site Scripting (XSS) vulnerability in the Angular Template Compiler due to an incomplete internal security schema, allowing attackers to bypass Angular's built-in security sanitization and inject malicious scripts.",
    "ai_severity": "High",
    "ai_vendor": "Google",
    "ai_product": "Angular",
    "ai_version": "<= 21.0.1, <= 20.3.14, <= 19.2.16",
    "ai_score": 8.5
}