CVE-2026-4053CWE-672

post edit time limit is not enforced on some post update operations

Low · published May 15, 2026

CVSS v3.1
3.1
EPSS
0%
Percentile
18.1
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00269 · 18.1th percentile
Weakness
CWE-672 · Operation on a Resource after Expiration or Release
Published
2026-05-15T18:42Z
EPSS history
Timeline
  • 15 MAY 18:42Z
    post edit time limit is not enforced on some post update operations
    cvelistv5