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.
References
| Link | Resource |
|---|---|
| https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f | Exploit Third Party Advisory |
| https://github.com/owncloud/guests | Product |
| https://marketplace.owncloud.com/apps/guests | Product |
| https://yeswehack.com/reports/411806 | Permissions Required |
Configurations
History
07 Jan 2026, 17:05
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Owncloud
Owncloud guests |
|
| References | () https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f - Exploit, Third Party Advisory | |
| References | () https://github.com/owncloud/guests - Product | |
| References | () https://marketplace.owncloud.com/apps/guests - Product | |
| References | () https://yeswehack.com/reports/411806 - Permissions Required | |
| CPE | cpe:2.3:a:owncloud:guests:*:*:*:*:*:*:*:* |
05 Nov 2025, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-200 CWE-203 |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
05 Nov 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-11-05 17:15
Updated : 2026-01-07 17:05
NVD link : CVE-2025-59716
Mitre link : CVE-2025-59716
CVE.ORG link : CVE-2025-59716
JSON object : View
Products Affected
owncloud
- guests