{"id":"CVE-2025-59716","details":"ownCloud Guests before 0.12.5 allows unauthenticated user enumeration via the /apps/guests/register/{email}/{token} endpoint. Because of insufficient validation of the supplied token in showPasswordForm, the server responds differently when an e-mail address corresponds to a valid pending guest user rather than a non-existent user.","modified":"2026-08-12T03:51:31.938603561Z","published":"2025-11-05T00:00:00Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"fixed":"0.12.5"}],"source":"DESCRIPTION"}],"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59716.json"},"references":[{"type":"WEB","url":"https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f"},{"type":"WEB","url":"https://marketplace.owncloud.com/apps/guests"},{"type":"WEB","url":"https://yeswehack.com/reports/411806"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59716.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59716"},{"type":"PACKAGE","url":"https://github.com/owncloud/guests"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/owncloud/guests","events":[{"introduced":"0"},{"last_affected":"0f3eb10fc6b1294cefabea7341a40b46f86cd563"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.12.4"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:owncloud:guests:*:*:*:*:*:*:*:*"}}],"versions":["v0.12.4-rc.2","v0.12.4","v0.9.3","v0.5.0","v0.4.2","v0.4.1","v.0.4","v0.3","v0.2","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59716.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}