CVE-2025-59716 – ownCloud Guests Unauthenticated User Enumeration

CVE ID : CVE-2025-59716

Published : Nov. 5, 2025, 5:15 p.m. | 1 hour, 2 minutes ago

Description : 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.

Severity: 0.0 | NA

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