CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Lifecycle Timeline
7DescriptionNVD
GitLab has remediated an issue in GitLab EE affecting all versions from 15.4 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to add email addresses to targeted user accounts due to improper sanitization of HTML content.
AnalysisAI
Improper HTML sanitization in GitLab EE versions 15.4-18.10.1 allows authenticated users to add email addresses to arbitrary user accounts, potentially enabling account takeover or unauthorized access escalation. Public exploit code exists for this vulnerability, and no patch is currently available. …
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RemediationAI
Within 24 hours: Identify all GitLab EE instances running versions 15.4-18.10.1 and document current deployment versions. Within 7 days: Apply the available vendor patch to all affected GitLab EE instances; verify patch deployment across the environment. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-15811
GHSA-3qcv-5pqj-c2h7