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CVE-2026-4120— Info Cards <= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes

Quick assessment

Affected
bplugins Info Cards – Add Text and Media in Card Layouts
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 Info Cards – Add Text and Media in Card Layouts 2.0.7及之前版本存在跨站脚本漏洞，该漏洞源于对Info Cards块中btnUrl参数的URL方案输入验证不足，特别

CVSS 6.4 · Medium EPSS 0.36% · P27
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I. Basic Information for CVE-2026-4120

Vulnerability Information
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Vulnerability Title
Info Cards <= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes
Source: CVE Program / CVE List V5
Vulnerability Description
The Info Cards – Add Text and Media in Card Layouts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnUrl' parameter within the Info Cards block in all versions up to, and including, 2.0.7. This is due to insufficient input validation on URL schemes, specifically the lack of javascript: protocol filtering. The block's render.php passes all attributes as JSON to the frontend via a data-attributes HTML attribute using esc_attr(wp_json_encode()), which prevents HTML attribute injection but does not validate URL protocols within the JSON data. The client-side view.js then renders the btnUrl value directly as an href attribute on anchor elements without any protocol sanitization. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject javascript: URLs that execute arbitrary web scripts when a user clicks the rendered button link.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
Vulnerability Title
WordPress plugin Info Cards – Add Text and Media in Card Layouts 跨站脚本漏洞
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 Info Cards – Add Text and Media in Card Layouts 2.0.7及之前版本存在跨站脚本漏洞，该漏洞源于对Info Cards块中btnUrl参数的URL方案输入验证不足，特别
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
bplugins Info Cards – Add Text and Media in Card Layouts * ~ 2.0.7 -

II. Public POCs for CVE-2026-4120

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III. Intelligence Information for CVE-2026-4120

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Patches & Fixes for CVE-2026-4120 (7)

IV. Related Vulnerabilities

Same vendor: bplugins
Same weakness: CWE-79

V. Comments for CVE-2026-4120

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