CVE-2025-20051

medium

Description

Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate input when patching and duplicating a board, which allows a user to read any arbitrary file on the system via duplicating a specially crafted block in Boards.

References

https://securityonline.info/critical-mattermost-flaws-cve-2025-20051-cve-2025-24490-cve-2025-25279-expose-systems-to-file-read-and-sql-injection-attacks/

https://mattermost.com/security-updates

Details

Source: Mitre, NVD

Published: 2025-02-24

Updated: 2025-08-18

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

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

Severity: Medium

EPSS

EPSS: 0.00077