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.
{ "nvd_published_at": "2024-04-26T09:15:12Z", "cwe_ids": [ "CWE-284" ], "severity": "LOW", "github_reviewed": true, "github_reviewed_at": "2024-04-26T19:06:43Z" }