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....

BIT-MATTERMOST-2024-2447

Mattermost versions 8.1.x before 8.1.11, 9.3.x before 9.3.3, 9.4.x before 9.4.4, and 9.5.x before 9.5.2 fail to authenticate the source of certain types of post actions, allowing an authenticated attacker to create posts as other users via a crafted post action...