Information disclosure in Rcatheme Guest Support
CVE-2025-13660
The Guest Support plugin for WordPress is vulnerable to User Email Disclosure in versions up to, and including, 1.2.3. This is due to the plugin exposing a public AJAX endpoint that allows anyone to search for and retrieve user email addresses without any authentication or capability checks. This makes it possible for unauthenticated attackers to enumerate user accounts and extract email addresses via the guest_support_handler=ajax endpoint with the request=get_users parameter.
Vulnerability class: Information Disclosure
EPSS: 0.003 (22.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Rcatheme Guest Support — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-13660?
- CVE-2025-13660 is a medium-severity vulnerability in Rcatheme Guest Support, classified under Information Disclosure. CVSS score: 5.3/10. Published 2025-12-12.
- How severe is CVE-2025-13660?
- Medium severity. CVSS v3 base score is 5.3 out of 10.