{"id":"CVE-2025-53514","aliases":["GHSA-w92j-c6gr-hj8r","GO-2025-3871"],"url":"https://o3.security/vulnerability/CVE-2025-53514","summary":"Unexpected Input to Server Webhook endpoint Causes DoS in Mattermost Confluence Plugin","details":"Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body.","published":"2025-08-11T18:57:01.515Z","modified":"2026-07-31T18:30:54.340285702Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-plugin-confluence","fixedVersion":"1.5.0"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/mattermost/mattermost-plugin-confluence/"},{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53514.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53514"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:54.340285702Z"}}