Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
References (3)
Core 3
Core References
Exploit technical-description
exploit
permissions-required
HackerOne Bug Bounty Report #3572231
https://hackerone.com/reports/3572231
Scores
CVSS v3
8.0
EPSS
0.0002
EPSS Percentile
4.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-41
Status
published
Products (4)
gitlab/gitlab
18.11.0 (2 CPE variants)
GitLab/GitLab
18.10 - 18.10.4
gitlab/gitlab
18.10.0 - 18.10.4 (2 CPE variants)
GitLab/GitLab
18.11 - 18.11.1
Published
Apr 22, 2026
Tracked Since
Apr 22, 2026