CVE-2025-14273 - CVE House

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Status published High CVE-2025-14273

Mattermost Jira plugin user spoofing enables Jira request forgery.

7.2 CVSS

Vulnerability Description

Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Juho Forsén

References

https://mattermost.com/security-updates

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Affected Vendor

Mattermost

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Affected Software

Mattermost

Vulnerable Versions:

11.1.0, 11.0.0, 10.12.0, 10.11.0, 11.2.0, 11.1.1, 11.0.6, 10.12.4, 10.11.8

Timeline

Official Publish: December 22nd, 2025

Last Modified: December 22nd, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.