CVE-2025-27936

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CVSS 3.1

5.9 medium

EPSS

<1%p25

Published

Apr 16, 2025 (Apr 16, 2025)

Modified

Jun 17, 2026

Description

Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.

Vendors: mattermost
Products: mattermost server, ms teams
Weakness: CWE-208
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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