CVE-2023-5356

HIGH

Gitlab < 16.5.6 - Incorrect Authorization

Title source: rule

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.

References (2)

[Broken Link] https://gitlab.com/gitlab-org/gitlab/-/issues/427154

[Permissions Required] https://hackerone.com/reports/2188868

Scores

CVSS v3 7.3

EPSS 0.0007

EPSS Percentile 20.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

Classification

CWE

CWE-863

Status published

Affected Products (6)

gitlab/gitlab < 16.5.6

gitlab/gitlab

Timeline

Published Jan 12, 2024

Tracked Since Feb 18, 2026