🛡️ CVE-2025-0503
🟢 CVSS 3.1 — Low ✅ No Known Exploit CWE-754 NVD
3.1
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity LOW
CVSS Score 3.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE CWE-754
Public Exploit ✅ No
Source NVD
Published 2025-02-14
Updated 2026-06-02
Modified 2025-09-29
Fix URL N/A

Affected Packages

Software From version Fixed in
mattermost-server 9.11.0 9.11.7

References

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