PT-2022-37854 · Go · Github.Com/Mattermost/Mattermost-Server

Published 2022-05-24 · Updated 2022-05-24

OSV

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Resource-owner authorization can be intermittently bypassed, allowing account takeover.

Fix

Incorrect Permission

IDOR

Weakness Enumeration

CWE-732

CWE-639

Related Identifiers

GHSA-GG42-MWR6-P82C

Affected Products

Github.Com/Mattermost/Mattermost-Server

References · 4

• https://osv.dev/vulnerability/GHSA-gg42-mwr6-p82c · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18894 · Security Note
• https://github.com/mattermost/mattermost · Note
• https://mattermost.com/security-updates · Note