{"id":"CVE-2025-53910","aliases":["GHSA-v6c8-g53h-mc2h","GO-2025-3869"],"url":"https://o3.security/vulnerability/CVE-2025-53910","summary":"Unauthorized Channel Subscription Edit in Mattermost Confluence Plugin","details":"Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.","published":"2025-08-11T18:57:03.212Z","modified":"2026-07-31T18:30:22.729972896Z","cvss":{"score":4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/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/2025/53xxx/CVE-2025-53910.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53910"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:22.729972896Z"}}