CVE-2025-2255

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

An issue has been discovered in Gitlab EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). for AppSec.

Affected

GitLab

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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

0.29% chance of exploitation in the next 30 days, 21st percentile

Published

2025-03-27

Proof-of-concept exploits (1)

• https://hackerone.com/reports/2994150

Security advisories

• https://gitlab.com/gitlab-org/gitlab/-/issues/524635

References

• CVE Record
• NVD entry