EUVD-2026-13072
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Description
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.
Analysis
The Info Cards - Add Text and Media in Card Layouts WordPress plugin versions up to 2.0.7 contains a Stored Cross-Site Scripting vulnerability in the 'btnUrl' parameter of the Info Cards block that allows authenticated attackers with Contributor-level access to inject arbitrary JavaScript code. The vulnerability exists because the plugin fails to validate URL protocols (specifically javascript: schemes) on the server side, and the client-side rendering directly inserts unsanitized URLs into anchor href attributes, enabling script execution when users click the malicious button links. …
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Remediation
Within 30 days: Identify affected systems running the Info Cards block in all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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