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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (23.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
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.