CVE-2025-9084

Open redirect in OAuth login

State: Published
Severity: 3.1 Low
Published: Sep 15, 2025
Updated: Sep 15, 2025
Reserved: Aug 15, 2025

Description

Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs

Scores

CVSS	Score	Vector	Source
3.1	3.1 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N	Mattermost

Weaknesses

CWE-601 CWE‑601: URL Redirection to Untrusted Site (“Open Redirect”)

Affected Products

Product	Versions
MattermostMattermost	10.5.0 through 10.5.9Affected 10.11.0Not affected 10.5.10Not affected

References

https://mattermost.com/security-updates

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