CVE-2026-3109

2.2 LOW

Published: March 26, 2026 Modified: March 30, 2026

Description

Mattermost Plugins versions <=11.4 10.11.11.0 fail to validate webhook request timestamps which allows an attacker to corrupt Zoom meeting state in Mattermost via replayed webhook requests. Mattermost Advisory ID: MMSA-2026-00584

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://mattermost.com/security-updates

Source: responsibledisclosure@mattermost.com

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

2.2 / 10.0

EPSS (Exploit Probability)

0.0%

14th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-754

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