EUVD-2026-13996
GHSA-v6ph-2p6j-56h7
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 WPFAQBlock- FAQ & Accordion Plugin For Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' parameter of the 'wpfaqblock' shortcode in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Analysis
The WPFAQBlock plugin for WordPress contains a Stored Cross-Site Scripting vulnerability in the 'class' parameter of the 'wpfaqblock' shortcode, affecting all versions up to and including 1.1. Authenticated attackers with Contributor-level access or higher can inject arbitrary JavaScript that persists in pages and executes for all users visiting those pages. …
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Remediation
Within 30 days: Identify affected systems running 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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