CVE-2025-36530
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-21

Last updated on: 2025-08-25

Assigner: Mattermost, Inc.

Description
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.
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Meta Information
Published
2025-08-21
Last Modified
2025-08-25
Generated
2026-05-07
AI Q&A
2025-08-21
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
mattermost mattermost_server From 9.11.0 (inc) to 9.11.18 (exc)
mattermost mattermost_server From 10.5.0 (inc) to 10.5.9 (exc)
mattermost mattermost_server From 10.8.0 (inc) to 10.8.4 (exc)
mattermost mattermost_server From 10.9.0 (inc) to 10.9.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in certain Mattermost versions where the software fails to properly validate file paths during plugin import operations. This flaw allows restricted admin users to exploit path traversal to install unauthorized custom plugins, bypassing plugin signature enforcement and marketplace restrictions.


How can this vulnerability impact me? :

The vulnerability can allow restricted admin users to install unauthorized plugins, potentially leading to the introduction of malicious or unverified code into the Mattermost environment. This could compromise the integrity of the system and lead to unauthorized actions or data exposure.


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