CVE-2026-1093
Received Received - Intake

Stored XSS in WPFAQBlock Plugin via 'class' Shortcode Parameter

Publication date: 2026-03-21

Last updated on: 2026-03-21

Assigner: Wordfence

Description
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.

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Meta Information

Published
2026-03-21
Last Modified
2026-03-21
Generated
2026-07-06
AI Q&A
2026-03-21
EPSS Evaluated
2026-07-05
NVD
CVE-2026-1093
EUVD
EUVD-2026-13996

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wpfaqblock faq_&_accordion_plugin_for_gutenberg to 1.1 (inc)
creative_werk_designs wpfaqblock to 1.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The WPFAQBlock – FAQ & Accordion Plugin For Gutenberg plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability. This occurs via the 'class' parameter of the 'wpfaqblock' shortcode in all versions up to and including 1.1. The vulnerability exists because the plugin does not properly sanitize or escape user-supplied input in this parameter.

As a result, authenticated attackers with Contributor-level access or higher can inject arbitrary web scripts into pages. These scripts will execute whenever any user accesses the injected page.

Impact Analysis

This vulnerability can allow attackers with Contributor-level access or above to inject malicious scripts into WordPress pages. These scripts can execute in the browsers of users who visit the affected pages.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It can be used to deliver malware or redirect users to malicious sites.
Compliance Impact

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