CVE-2026-3637

creationtimestamp| type| source ---|---|--- 2026-05-18 08:30:00+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mm4hj6o32x2p...

CVE-2026-3637

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to check the createpost channel permission during post edit operations which allows an authenticated attacker with revoked posting privileges to modify their existing posts via direct API requests to the post update and...