What is CVE-2025-0555?

CVE-2025-0555 is a high-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 7.7/10. Published 2025-03-03.

How severe is CVE-2025-0555?

High severity. CVSS v3 base score is 7.7 out of 10.

XSS in Gitlab

CVE-2025-0555

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (36.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Gitlab — versions 17.8, 17.9.0, 17.9

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@gitlab.com (issue-tracking, permissions-required, Broken Link)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-0555?: CVE-2025-0555 is a high-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 7.7/10. Published 2025-03-03.
How severe is CVE-2025-0555?: High severity. CVSS v3 base score is 7.7 out of 10.