CVE-2025-12756
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-01

Last updated on: 2025-12-05

Assigner: Mattermost, Inc.

Description
Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users.
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Meta Information
Published
2025-12-01
Last Modified
2025-12-05
Generated
2026-05-07
AI Q&A
2025-12-01
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
mattermost mattermost_server From 10.5.0 (inc) to 10.5.13 (exc)
mattermost mattermost_server From 10.11.0 (inc) to 10.11.5 (exc)
mattermost mattermost_server From 10.12.0 (inc) to 10.12.2 (exc)
mattermost mattermost_server From 11.0.0 (inc) to 11.0.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in certain versions of Mattermost where the system fails to properly check user permissions when deleting comments in Boards. Specifically, an authenticated user with the editor role can delete comments made by other users, which they should not be allowed to do.


How can this vulnerability impact me? :

The vulnerability allows users with editor permissions to delete comments created by others, potentially leading to unauthorized modification or removal of content. This can disrupt communication, cause loss of important information, and undermine trust in the integrity of the platform.


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