Security Advisory

CVE-2025-13352

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-12-17 12:11:25

Last updated 2025-12-17 16:48:08

Assigner Mattermost

State PUBLISHED

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.

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