3.1
/ 10
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Description
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce the PostEditTimeLimit on non-message post fields which allows an authenticated user to modify post file attachments, props, and pin status after the edit window has expired via the post patch and update API endpoints.. Mattermost Advisory ID: MMSA-2026-00631
Basic Information
ID
CVE-2026-4053
Source
Mattermost
Published
May 15, 2026 at 18:42
Affected Product
Vendor
Mattermost
Product
Mattermost
Version
11.5.0
Affected Versions
Mattermost Mattermost 11.5.0
Mattermost Mattermost 10.11.0
Mattermost Mattermost 10.11.0