Description
An issue has been discovered in GitLab affecting all versions starting from 9.3 before 15.4.6, all versions starting from 15.5 before 15.5.5, all versions starting from 15.6 before 15.6.1. It was possible for a project maintainer to leak a webhook secret token by changing the webhook URL to an endpoint that allows them to capture request headers.
References (3)
Core 3
Core References
Exploit, Issue Tracking, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/382260
Permissions Required, Third Party Advisory
https://hackerone.com/reports/1758126
Scores
CVSS v3
5.5
EPSS
0.0023
EPSS Percentile
45.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (2)
gitlab/gitlab
15.6.0 (2 CPE variants)
gitlab/gitlab
9.3.0 - 15.4.6 (2 CPE variants)
Published
Jan 26, 2023
Tracked Since
Feb 18, 2026