CVE-2025-8405
Improper Encoding or Escaping of Output in GitLab
7.7
HIGH
CVSS 3.1
EPSS 0.01%
Description
GitLab has remediated a security issue in GitLab CE/EE affecting all versions from 17.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to perform unauthorized actions on behalf of other users by injecting malicious HTML into vulnerability code flow displays.
How to fix CVE-2025-8405
To remediate CVE-2025-8405, upgrade the affected package to a fixed version below.
- —upgrade to 18.4.6 or later
Is CVE-2025-8405 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 17.1.0, < 18.4.6, >= 18.5.0, < 18.5.4, >= 18.6.0, < 18.6.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |