CVE-2025-0503

Low

Description

Mattermost versions 9.11.x <= 9.11.6 fail to filter out DMs from the deleted channels endpoint which allows an attacker to infer user IDs and other metadata from deleted DMs if someone had manually marked DMs as deleted in the database.

SeverityLow
CVSS3.1
Exploit probability—
ProductMattermost Server
PublishedFeb 14, 2025
First seenFeb 14, 2025
Weakness typeCWE-754CWE-754

How to fix

Update
  • mattermost mattermost_server9.11.7 or later

Affected products

ProductAffected versionsFixed in
mattermost mattermost_server9.11.0 ≤ v < 9.11.79.11.7

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