CVE-2023-5356 Information

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.

Reference

https://gitlab.com/gitlab-org/gitlab/-/issues/427154 https://hackerone.com/reports/2188868