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CVE-2025-13660— Guest Support <= 1.2.3 - Unauthenticated User Email Disclosure in guest_support_handler AJAX Endpoint

Quick assessment

Affected
rcatheme Guest Support
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Guest Support 1.2.3及之前版本存在信息泄露漏洞，该漏洞源于公开AJAX端点暴露用户邮箱地址，可能导致未经验证的攻击者枚举用户账户。

CVSS 5.3 · Medium EPSS 0.33% · P26
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I. Basic Information for CVE-2025-13660

Vulnerability Information
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Vulnerability Title
Guest Support <= 1.2.3 - Unauthenticated User Email Disclosure in guest_support_handler AJAX Endpoint
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Guest Support 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Guest Support 1.2.3及之前版本存在信息泄露漏洞，该漏洞源于公开AJAX端点暴露用户邮箱地址，可能导致未经验证的攻击者枚举用户账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rcatheme Guest Support * ~ 1.2.3 -

II. Public POCs for CVE-2025-13660

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III. Intelligence Information for CVE-2025-13660

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Patches & Fixes for CVE-2025-13660 (3)

Vendor Advisories for CVE-2025-13660 (1)

IV. Related Vulnerabilities

Same product: Guest Support
Same vendor: rcatheme
Same weakness: CWE-200

V. Comments for CVE-2025-13660

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