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CVE-2025-54525

Unexpected input to Create Channel Subscription endpoint causes DoS in Mattermost Confluence Plugin

CVSS 7.5 HIGHEPSS 0.3%CWE-1287
Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to create channel subscription endpoint with an invalid request body.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Mattermost · Mattermost Confluence Plugin

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References
https://mattermost.com/security-updates