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CVE-2026-1426— Advanced AJAX Product Filters <= 3.1.9.6 - Authenticated (Author+) PHP Object Injection via Live Composer Compatibility

Quick assessment

Affected
berocket Advanced AJAX Product Filters
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 Advanced AJAX Product Filters 3.1.9.6及之前版本存在代码问题漏洞，该漏洞源于Live Composer兼容层中shortcode_check函数对不可信输入进行反序列化，可能导致经

CVSS 8.8 · High EPSS 0.53% · P44
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I. Basic Information for CVE-2026-1426

Vulnerability Information
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Vulnerability Title
Advanced AJAX Product Filters <= 3.1.9.6 - Authenticated (Author+) PHP Object Injection via Live Composer Compatibility
Source: CVE Program / CVE List V5
Vulnerability Description
The Advanced AJAX Product Filters plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.1.9.6 via deserialization of untrusted input in the shortcode_check function within the Live Composer compatibility layer. This makes it possible for authenticated attackers, with Author-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. Note: This vulnerability requires the Live Composer plugin to also be installed and active.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Advanced AJAX Product Filters 代码问题漏洞
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 Advanced AJAX Product Filters 3.1.9.6及之前版本存在代码问题漏洞，该漏洞源于Live Composer兼容层中shortcode_check函数对不可信输入进行反序列化，可能导致经
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
berocket Advanced AJAX Product Filters * ~ 3.1.9.6 -

II. Public POCs for CVE-2026-1426

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III. Intelligence Information for CVE-2026-1426

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IV. Related Vulnerabilities

Same product: Advanced AJAX Product Filters
Same vendor: berocket
Same weakness: CWE-502

V. Comments for CVE-2026-1426

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