| Summary | Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes, which allows an attacker authenticated as a team admin to promote guests to team admins via crafted HTTP requests. |
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| Publication Date | April 26, 2024, 6:15 p.m. |
| Registration Date | April 26, 2024, 8 p.m. |
| Last Update | April 26, 2024, 6:15 p.m. |