CVE-2025-14273
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-22

Last updated on: 2025-12-29

Assigner: Mattermost, Inc.

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
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Meta Information
Published
2025-12-22
Last Modified
2025-12-29
Generated
2026-06-16
AI Q&A
2025-12-23
EPSS Evaluated
2026-06-15
NVD
CVE-2025-14273
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
mattermost mattermost_server From 10.11.0 (inc) to 10.11.8 (exc)
mattermost mattermost_server From 10.12.0 (inc) to 10.12.4 (exc)
mattermost mattermost_server From 11.0.0 (inc) to 11.0.6 (exc)
mattermost mattermost_server From 11.1.0 (inc) to 11.1.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-303 The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
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Executive Summary

This vulnerability exists in certain versions of Mattermost and its Jira plugin where authentication and issue-key path restrictions are not properly enforced. An unauthenticated attacker who knows a valid user ID can send authenticated GET and POST requests to the Jira server by crafting plugin payloads that spoof the user ID and inject arbitrary issue key paths.

Impact Analysis

The vulnerability allows an unauthenticated attacker to perform actions on the Jira server as if they were an authenticated user, potentially leading to unauthorized modification or access to Jira issues. This can result in integrity and availability impacts on the affected systems.

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