CVE-2026-0998 Mattermost Zoom Plugin allows unauthorized meeting creation and post modification via insufficient API access controls

Mattermost versions 11.1.x = 11.1.2, 10.11.x = 10.11.9, 11.2.x = 11.2.1 and Mattermost Plugin Zoom versions =1.11.0 fail to validate user identity and post ownership in the /api/v1/askPMI endpoint which allows unauthorized users to start Zoom meetings as any user and overwrite arbitrary posts via...

CVE-2025-64641

Mattermost contains a vulnerability where post actions invoking /share-issue-publicly are not verified to be created by the Jira plugin, enabling a malicious user to exfiltrate Jira tickets when victims interact with affected posts. Affected versions include Mattermost 11.1.x (<=11.1.0), 11.0....