CVE-2025-9084

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CVSS 3.1

6.1 medium

EPSS

<1%p7

Published

Sep 15, 2025 (Sep 15, 2025)

Modified

Jun 17, 2026

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

Vendors: mattermost
Products: mattermost server
Weakness: CWE-601
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

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