CVE-2025-13870CWE-306

CVE-2025-13870

Low · published December 2, 2025

CVSS v3.1
3.1
EPSS
0%
Percentile
12.2
In the wild
Unconfirmed
What it is

Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to

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:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00223 · 12.2th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-12-02T15:16Z
Affected products (2)
ProductVersionsFixed in
mattermost/mattermost_server≥ 10.5.0, < 10.5.1310.5.13
mattermost/mattermost_server≥ 10.11.0, < 10.11.510.11.5
References (1)
https://mattermost.com/security-updates · [email protected]
EPSS history
Timeline
  • 02 DEC 09:28Z
    Unauthorized access and subscription vulnerability in Boards
    cvelistv5