Mattermost versions 10.5.x <= 10.5.1, 9.11.x <= 9.11.9 fail to check if a file has been deleted when creating a bookmark which allows an attacker who knows the IDs of deleted files to obtain metadata of the files via bookmark creation.
{ "nvd_published_at": "2025-04-14T15:15:24Z", "cwe_ids": [ "CWE-863" ], "severity": "LOW", "github_reviewed": true, "github_reviewed_at": "2025-04-14T21:55:16Z" }