{"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":"2026-03-13T03:39:35.518244Z","published":"2025-11-05T17:15:44.800Z","references":[{"type":"WEB","url":"https://marketplace.owncloud.com/apps/guests"},{"type":"REPORT","url":"https://yeswehack.com/reports/411806"},{"type":"PACKAGE","url":"https://github.com/owncloud/guests"},{"type":"EVIDENCE","url":"https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/owncloud/guests","events":[{"introduced":"0"},{"last_affected":"0f3eb10fc6b1294cefabea7341a40b46f86cd563"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.12.4"}]}}],"versions":["0.11.0-rc.1","v.0.4","v0.1","v0.10.0","v0.10.0-rc","v0.10.0-rc.2","v0.10.0-rc1","v0.11.0","v0.11.0-rc.1","v0.11.0-rc.2","v0.12.0","v0.12.0-rc.1","v0.12.1","v0.12.1-rc.1","v0.12.2","v0.12.2-rc.1","v0.12.4","v0.12.4-rc.2","v0.2","v0.3","v0.4.1","v0.4.2","v0.5.0","v0.6.0","v0.6.0RC1","v0.6.1","v0.6.2","v0.7.0","v0.7.0RC1","v0.7.0RC2","v0.8.0","v0.8.0RC1","v0.8.1","v0.8.1RC1","v0.8.2","v0.8.2RC1","v0.8.3RC1","v0.9.0","v0.9.0RC1","v0.9.1","v0.9.1RC1","v0.9.2","v0.9.2-rc1","v0.9.3","v0.9.3-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59716.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}