CVE-2025-4278

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab

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.

Affected

GitLab

CVSS v3.1 GITLAB

8.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS

10.88% chance of exploitation in the next 30 days, 96th percentile

Published

2025-06-12

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3085738

References

• CVE Record
• NVD entry