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Status published
High
CVE-2025-4278
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions starting with 18.0 before 18.0.2. Under certain conditions html injection in new search page could lead to account takeover.
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
References
More from GitLab
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Insertion of Sensitive Information Into Sent Data in GitLab
High
7.7
CVE-2025-9957
Incorrect Authorization in GitLab
Low
2.7
CVE-2025-9825
Missing Authorization in GitLab
Medium
5
CVE-2025-9642
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
High
8.7
CVE-2025-9484
Missing Authorization in GitLab
Medium
4.3
Affected Vendor
GitLab
View all reports →Affected Software
GitLab
Vulnerable Versions:
18.0
Timeline
Official Publish:
June 12th, 2025
Last Modified:
June 12th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N