CVE-2025-13660: Information Disclosure (CVSS 5.3)

Description

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-200 CWE-200

References

Other References

https://plugins.trac.wordpress.org/browser/guest-support/tags/1.2.3/includes/library/ajax.php#L22 https://plugins.trac.wordpress.org/browser/guest-support/trunk/includes/library/ajax.php#L22 https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3412822%40guest-support&new=3412822%40guest-support&sfp_email=&sfph_mail= https://www.wordfence.com/threat-intel/vulnerabilities/id/01299aba-0dff-47fd-9e90-ee84f00a0f3b?source=cve

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-13660? +

CVE-2025-13660 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-13660? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-13660