CVE-2025-0503 — Improper Check for Unusual or Exceptional Conditions in Server

CWE-754 — Improper Check for Unusual or Exceptional Conditions3 documents3 sources
Severity
5.3MEDIUMNVD
CNA3.1
EPSS
0.4%
top 41.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mattermost ServerMattermost
Timeline
PublishedFeb 14

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶NVDmattermost/mattermost_server9.11.0 — 9.11.7
▶CVEListV5mattermost/mattermost9.11.0 — 9.11.6

🔴Vulnerability Details

2
GHSA
GHSA-cc72-wc5x-7wmj: Mattermost versions 9↗2025-02-14
▶
CVEList
Leaked User IDs and Metadata of Deleted DMs↗2025-02-14
▶
CVE-2025-0503 — Mattermost Server vulnerability | cvebase