PT-2025-42445 · Mattermost · Mattermost

Doyensec · Published 2025-10-16 · Updated 2025-11-07 · CVE-2025-58073

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Mattermost versions 10.5.x through 10.5.10 Mattermost versions 10.10.x through 10.10.2 Mattermost versions 10.11.x through 10.11.1

Description The Mattermost software has an issue where user permissions are not properly verified when joining a team using an invite token. This is due to manipulation of the OAuth state parameter. An attacker can bypass team membership restrictions and join any team on a Mattermost server without authorization.

Recommendations Update Mattermost versions to a version later than 10.5.10 Update Mattermost versions to a version later than 10.10.2 Update Mattermost versions to a version later than 10.11.1

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

BDU:2025-13336

CVE-2025-58073

GHSA-6Q7M-P8CC-998R

GO-2025-4032

OPENSUSE-SU-2025:15710-1

Affected Products

Mattermost

References · 91

• https://osv.dev/vulnerability/GHSA-6q7m-p8cc-998r · Vendor Advisory
• https://osv.dev/vulnerability/GO-2025-4032 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-58073 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15710-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-58073 · Security Note
• https://mattermost.com/security-updates · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13336 · Security Note
• https://github.com/mattermost/mattermost · Note
• https://github.com/mattermost/mattermost/commit/2096f975b2c0ebe95fb1078c3b1a527da574796d · Note
• https://github.com/mattermost/mattermost/commit/e14175eb65393bebc16dbb68a8105b3094b0f0dd · Note
• https://github.com/mattermost/mattermost/commit/39bd251fe4f66b7e847fc6d653221886347ff160 · Note
• https://suse.com/security/cve/CVE-2025-58356 · Note
• https://suse.com/security/cve/CVE-2025-61141 · Note
• https://suse.com/security/cve/CVE-2025-64102 · Note
• https://suse.com/security/cve/CVE-2025-62375 · Note