{"id":"CVE-2025-54525","aliases":["GHSA-3cg3-3mmr-w8hj","GO-2025-3872"],"url":"https://o3.security/vulnerability/CVE-2025-54525","summary":"Unexpected input to Create Channel Subscription 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 create channel subscription endpoint with an invalid request body.","published":"2025-08-11T18:57:06.841Z","modified":"2026-08-12T03:51:29.489688856Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/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/2025/54xxx/CVE-2025-54525.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54525"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:29.489688856Z"}}