rcatheme Guest Support Plugin up to 1.2.3 on WordPress AJAX Endpoint guest_support_handler Request information disclosure

Summaryinfo

A vulnerability described as problematic has been identified in rcatheme Guest Support Plugin up to 1.2.3 on WordPress. This vulnerability affects the function guest_support_handler of the component AJAX Endpoint. Such manipulation of the argument Request with the input get_users leads to information disclosure. This vulnerability is uniquely identified as CVE-2025-13660. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in rcatheme Guest Support Plugin up to 1.2.3 on WordPress. Affected by this issue is the function guest_support_handler of the component AJAX Endpoint. The manipulation of the argument request with the input value get_users leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

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.

The weakness was disclosed by Md. Moniruzzaman Prodhan. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2025-13660 since 11/25/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• rcatheme

Name

• Guest Support Plugin

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3

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CPE 2.2info

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