VULNERABILITY INTELLIGENCE

CVE-2017-18897

CVSS score6.1 MEDIUM
EPSS probability0.69%
CISA KEVNot currently listed
Published2020-06-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

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. It mishandles a deny action for a redirection.

Weakness classification

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Primary references