Vulnerability Report

CVE-2026-0997

Title: Channel preference bypass in Mattermost Plugin Zoom

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-0997.

CWE Category CWE-863

Published Date Feb 16, 2026

Modified Date Feb 18, 2026

Exploit Status Not Found

Score 4.3 CVSS v3.1

Exploit Probability (EPSS)

0.15%

Vulnerability Summary

CVE-2026-0997: Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate the authenticated user when processing {{/plugins/zoom/api/v1/channel-preference}}, which allows any logged-in user to change Zoom meeting restrictions for arbitrary channels via crafted API requests.. Mattermost Advisory ID: MMSA-2025-00558

Impacted Vendors

zoom 1

mattermost 2

Reference Links

https://mattermost.com/security-updates

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

4.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-0997 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

February 18, 2026 MODIFIED

Vulnerability data updated via NVD.

February 18, 2026 MODIFIED

Vulnerability data updated via NVD.

February 18, 2026 MODIFIED

Vulnerability data updated via NVD.

February 16, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.