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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-4120 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/block.json#L35 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/render.php#L8 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/tags/2.0.7/build/view.js#L2 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/block.json#L35 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php#L8 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/render.php?rev=3482902 Wordfence
https://plugins.trac.wordpress.org/browser/info-cards/trunk/build/view.js#L2 Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/279984d9-f352-467f-a53d-814466d70326?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-4120
NVD Published Date:
03/19/2026
NVD Last Modified:
03/19/2026
Source:
Wordfence