BIT-gitlab-2025-8405

vendorUSosv

Improper Encoding or Escaping of Output in GitLab

view advisory published 2025-12-18Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-8405US	—	0.52% (44th)	—	2025-12-11
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 authent…

references

External citations — patches, advisories, analysis.

https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/ADVISORY
https://gitlab.com/gitlab-org/gitlab/-/issues/558214WEB
https://hackerone.com/reports/3270940WEB
https://nvd.nist.gov/vuln/detail/CVE-2025-8405WEB

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