CVE-2023-5356

Incorrect Authorization in GitLab

State: Published
Severity: 7.3 High
Published: Jan 12, 2024
Updated: Apr 28, 2026
Reserved: Oct 3, 2023

Description

Incorrect authorization checks in GitLab CE/EE from all versions starting from 8.13 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2, allows a user to abuse slack/mattermost integrations to execute slash commands as another user.

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N	GitLab

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
GitLabGitLab	8.13 to before 16.5.6Affected 16.6 to before 16.6.4Affected 16.7 to before 16.7.2Affected

References

GitLab Issue #427154issue-trackingpermissions-required
HackerOne Bug Bounty Report #2188868technical-descriptionexploitpermissions-required

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