CVE-2025-13352

low

Description

Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.

References

https://mattermost.com/security-updates

Details

Source: Mitre, NVD

Published: 2025-12-17

Updated: 2025-12-29

Risk Information

CVSS v2

Base Score: 2.1

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

Severity: Low

CVSS v3

Base Score: 3

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

Severity: Low

EPSS

EPSS: 0.00042

Detections

Analytics