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CVE-2025-4439

CVE-2025-4439 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.7 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 15.10, < 18.0.5: Affected (semver)
    • ≥ 18.1, < 18.1.3: Affected (semver)
    • ≥ 18.2, < 18.2.1: Affected (semver)

    Update to 18.0.5; Update to 18.1.3; Update to 18.2.1

  • gitlab Ubuntu:16.04:LTS

    Versions
    • 8.4.3+dfsg-9
    • 8.4.3+dfsg-12
    • 8.5.8+dfsg-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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