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CVE-2025-4439

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 18.0.5, 18.1.3, 18.2.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 before 18.0.5, 18.1 before 18.1.3, and 18.2 before 18.2.1 that could have allowed an authenticated user to perform cross-site scripting attacks when the instance is served through certain content delivery networks.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • GitLab GitLab

    From 15.10 · fixed in 18.0.5; From 18.1 · fixed in 18.1.3; From 18.2 · fixed in 18.2.1

References 2

gitlab.com

hackerone.com