{"id":"CVE-2025-54463","aliases":["GHSA-gjpm-6w34-ppvf","GO-2025-3866"],"url":"https://o3.security/vulnerability/CVE-2025-54463","summary":"Unexpected Input to Cloud Webhook endpoint Causes DoS in Mattermost Confluence Plugin","details":"Mattermost Confluence Plugin versions < 1.5.0 fails to handle unexpected request bodies, allowing attackers to crash the plugin via constant hits to the server webhook endpoint with an invalid request body.","published":"2025-08-11T18:57:05.342Z","modified":"2026-08-12T03:51:45.433144226Z","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":{"score":0.00295,"percentile":0.21425,"asOf":"2026-08-24"},"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/2025/54xxx/CVE-2025-54463.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54463"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost-plugin-confluence"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2025-3866"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:45.433144226Z"}}