{"schema_version":"1.9.0","id":"CVE-2025-54463","published":"2025-08-11T18:57:05.342Z","modified":"2026-08-12T03:51:45.433144226Z","aliases":["GHSA-gjpm-6w34-ppvf","GO-2025-3866"],"related":["openSUSE-SU-2025:15469-1","openSUSE-SU-2026:21483-1"],"summary":"Unexpected Input to Cloud 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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost-plugin-confluence","events":[{"introduced":"0"},{"fixed":"eccd0fdb6730a5a2e5a8e3f9636b27122f024e47"}],"database_specific":{"cpe":"cpe:2.3:a:mattermost:confluence:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.5.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["v1.5.0-rc2","v1.5.0-rc1","v1.4.0-rc1","v1.3.0","v1.2.0","v1.1.0","v1.1.0-rc1","v1.0.0","v0.1.0-rc2","v0.1.0-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54463.json"}}],"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"}],"database_specific":{"cna_assigner":"Mattermost","cwe_ids":["CWE-754"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54463.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}