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.
https://mattermost.com/security-updates
Source: Mitre, NVD
Published: 2025-04-14
Updated: 2025-04-15
Base Score: 2.1
Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:N/A:N
Severity: Low
Base Score: 3.1
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N