Mattermost Confluence Plugin versions < 1.5.0 fail to handle unexpected request bodies, allowing attackers to crash the plugin via constant hits to the create channel subscription endpoint with an invalid request body.
{
"nvd_published_at": "2025-08-11T19:15:30Z",
"github_reviewed_at": "2025-08-12T00:07:04Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-1287"
],
"severity": "HIGH"
}