BIT-gitlab-2025-12734

vendorUSosv

Improper Encoding or Escaping of Output in GitLab

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 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, under certain conditions, render content in dialogs to other users by injecting malicious HTML content into merge request titles.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-12734US	—	0.27% (19th)	—	2025-12-11
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated u…

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/579573WEB
https://hackerone.com/reports/3379381WEB
https://nvd.nist.gov/vuln/detail/CVE-2025-12734WEB

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