CVE-2021-37859

HIGH

Mattermost 5.32.0-5.34.5 - Reflected Cross-Site Scripting Bypass in OAuth Flow

Title source: llm
STIX 2.1

Description

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://mattermost.com/security-updates/

Scores

CVSS v3 7.1
EPSS 0.4509
EPSS Percentile 97.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Details

CWE
CWE-79
Status published
Products (1)
mattermost/mattermost 5.32.0 - 5.34.5
Published Aug 05, 2021
Tracked Since Feb 18, 2026