CVE-2025-0555 - CVE House
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Status published High CVE-2025-0555

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Vulnerability Description

A Cross Site Scripting (XSS) vulnerability in GitLab-EE affecting all versions from 16.6 prior to 17.7.6, 17.8 prior to 17.8.4, and 17.9 prior to 17.9.1 allows an attacker to bypass security controls and execute arbitrary scripts in a users browser under specific conditions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program

Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
16.6, 17.8, 17.9

Timeline

Official Publish: March 3rd, 2025
Last Modified: March 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Weaknesses (CWE)