CVE-2025-59716

MEDIUM EPSS 53.5%
Published Nov 5, 20257mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Nov 5, 2025 7mo ago
Last Modified Jun 17, 2026 2w 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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
53.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-203

Affected Products 1

VendorProductVersionRange
owncloudguests* ≤0.12.4

References 4

  • gist.github.com https://gist.github.com/thesmartshadow/64ae0449e909174d0479a4f23657147f
    ExploitThird Party Advisory
  • github.com https://github.com/owncloud/guests
    Product
  • marketplace.owncloud.com https://marketplace.owncloud.com/apps/guests
    Product
  • yeswehack.com https://yeswehack.com/reports/411806
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.