{"id":"CVE-2025-49221","aliases":["GHSA-rfg4-2m63-fw2q","GO-2025-3862"],"url":"https://o3.security/vulnerability/CVE-2025-49221","summary":"Unauthenticated Access to Channel Subscription in Mattermost Confluence Plugin","details":"Mattermost Confluence Plugin versions < 1.5.0 fail to enforce authentication of the user to the Mattermost instance, which allows unauthenticated attackers to access subscription details via an API call to the GET subscription endpoint.","published":"2025-08-11T18:56:59.876Z","modified":"2026-08-12T03:51:31.999608192Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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/2025/49xxx/CVE-2025-49221.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49221"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost-plugin-confluence"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:31.999608192Z"}}