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CVE-2025-13870

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CVE-2025-13870

Published: Dec 2, 2025

Modified: Dec 2, 2025

PUBLISHED

CVSS v3.1

3.1

LOW

Description

Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to

VendorProductVersions

Mattermost

Mattermost

affected
10.11.0 - <= 10.11.4
affected
10.5.0 - <= 10.5.12
unaffected
11.1.0
unaffected
10.11.5
unaffected
10.5.13

Weaknesses (CWE)

CWE-306

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

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