{"id":"CVE-2025-54478","aliases":["GHSA-qpjq-c5hr-7925","GO-2025-3875"],"url":"https://o3.security/vulnerability/CVE-2025-54478","summary":"Unauthenticated Channel Subscription Edit in Mattermost Confluence Plugin","details":"Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint.","published":"2025-08-11T18:57:06.088Z","modified":"2026-07-31T18:31:17.268866077Z","cvss":{"score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},"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-2025-54478.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54478"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:31:17.268866077Z"}}