GitHub Advisoryadvisory · Go

GHSA-58w6-w55x-6wq8 Mattermost fails to validate user permissions in Boards

LOW Published 2025-12-02 Modified 2025-12-03 Official page ↗
Aliases
CVE-2025-13870
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-284, CWE-306
Reviewed
2025-12-03

Affected packages

• Go github.com/mattermost/mattermost/server/v8: < 8.0.0-20250905150616-ba86dfc5876b → fixed in 8.0.0-20250905150616-ba86dfc5876b • Go github.com/mattermost/mattermost: >= 10.11.0, < 10.11.5 → fixed in 10.11.5 • Go github.com/mattermost/mattermost: >= 10.5.0, < 10.5.13 → fixed in 10.5.13

Description

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

Related

Alias · CVE (1)

  • CVE-2025-13870 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… vulnerability

Weakness · CWE (2)

  • CWE-284 Improper Access Control weakness
  • CWE-306 Missing Authentication for Critical Functionality weakness

References