XSS in Gitblit
CVE-2025-50977
A template injection vulnerability leading to reflected cross-site scripting (XSS) has been identified in version 1.7.1, requiring authenticated admin access for exploitation. The vulnerability exists in the 'r' parameter and allows attackers to inject malicious Angular expressions that execute JavaScript code in the context of the application. The flaw can be exploited through GET requests to the summary endpoint as well as POST requests to specific Wicket interface endpoints, though the GET method provides easier weaponization. This vulnerability enables authenticated administrators to execute arbitrary client-side code, potentially leading to session hijacking, data theft, or further privilege escalation attacks.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (20.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Gitblit — versions 1.7.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-50977?
- CVE-2025-50977 is a medium-severity vulnerability in Gitblit, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-08-27.
- How severe is CVE-2025-50977?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-50977 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.