XSS in GitHub Enterprise Server
CVE-2025-11892
An improper neutralization of input vulnerability was identified in GitHub Enterprise Server that allows DOM-based cross-site scripting via Issues search label filter that could lead to privilege escalation and unauthorized workflow triggers. Successful exploitation requires an attacker to have access to the target GitHub Enterprise Server instance and to entice a user, while operating in sudo mode, to click on a crafted malicious link to perform actions that require elevated privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18.1, 3.17.7, 3.16.10, 3.15.14, 3.14.19.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (46.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Github Enterprise Server — versions 3.18.0, 3.17.0, 3.16.0
- Github Enterprise_server — versions 3.18.0
Weakness classification (CWE)
References
- product-cna@github.com (Release Notes, Vendor Advisory)
- product-cna@github.com (Release Notes, Vendor Advisory)
- product-cna@github.com (Release Notes, Vendor Advisory)
- product-cna@github.com (Release Notes, Vendor Advisory)
- product-cna@github.com (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-11892?
- CVE-2025-11892 is a critical-severity vulnerability in GitHub Enterprise Server, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2025-11-10.
- How severe is CVE-2025-11892?
- Critical severity. CVSS v3 base score is 9.6 out of 10.