CVE-2025-14273

Mattermost Jira plugin user spoofing enables Jira request forgery.

Published: Dec 22, 2025Updated: Dec 29, 2025 Sources: CVE List NVD GHSACWE-303

7.2HIGH

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

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:NConfidentiality

None

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-303

Affected Products

Mattermost

commercial·US

mattermost serverOn-premWeb App

Communications / messaging-chat

MattermostOn-premWeb App

Communications / messaging-chat

package-ecosystem

github.com/mattermost/mattermost/server/v8

OSS Libraries

github.com/mattermost/mattermost-plugin-jira

OSS Libraries

Exploitability

Official Patch Available

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References

https://mattermost.com/security-updates

mattermost.com

https://nvd.nist.gov/vuln/detail/CVE-2025-14273

nvd.nist.gov

https://github.com/mattermost/mattermost-plugin-jira/commit/bf9a1b7e81eb83304056b397c6abab3b062e14a2

github.com

and 6 more references View all →

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