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CVE-2026-110776— MDTF <= 1.4.1 - Unauthenticated Stored Cross-Site Scripting via 'vars' Parameter

Quick assessment

Affected
realmag777 MDTF – Meta Data and Taxonomies Filter
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 插件"MDTF – Meta Data and Taxonomies Filter"（元数据与分类过滤器）在 1.4.1 及以下所有版本中，由于输入清洗和输出转义不足，存在通过"vars"参数触发的存储型跨站脚本（Stored XSS）漏洞。该漏洞允许未认证的攻击者在目标站点上注入任意 Web 脚本，这些脚本将在任何用户访问被注入的页面时执行。利用该漏洞的前提是：目标站点上已发布且包含 短代码的页面或文章必须存在，该短代码是该插件的主要输出功能。

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-110776

Vulnerability Information
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Vulnerability Title
MDTF <= 1.4.1 - Unauthenticated Stored Cross-Site Scripting via 'vars' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The MDTF – Meta Data and Taxonomies Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'vars' parameter in all versions up to, and including, 1.4.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that a published page or post on the target site contains the [meta_data_filter_results] shortcode, which is the primary output feature of the plugin.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
realmag777 MDTF – Meta Data and Taxonomies Filter 0 ~ 1.4.1 -

II. Public POCs for CVE-2026-110776

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III. Intelligence Information for CVE-2026-110776

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Other References for CVE-2026-110776 (5)

IV. Related Vulnerabilities

Same product: MDTF – Meta Data and Taxonomies Filter
Same vendor: realmag777
Same weakness: CWE-79