CVE-2018-21264

HIGH

Mattermost Server < 4.7.0, < 4.6.2, < 4.5.2 - SAML Response Expiration Bypass

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.

References (1)

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

Scores

CVSS v3 8.8
EPSS 0.0051
EPSS Percentile 66.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (2)
mattermost/mattermost_server 4.7.0 rc1 (4 CPE variants)
mattermost/mattermost_server < 4.5.2
Published Jun 19, 2020
Tracked Since Feb 18, 2026