What the vulnerability does
01Description
The Equalize Digital Accessibility Checker – WCAG, ADA, EAA and Section 508 compliance plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'html' parameter in all versions up to, and including, 1.46.0 due to insufficient input sanitization and output escaping. 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. This requires the attacker to have the ability to edit a post, as the REST endpoint /accessibility-checker/v1/post-scan-results/{id} is guarded only by the edit_post capability on the target post.
Explanation of Vulnerability in Simple Terms
02Summary
The Equalize Digital Accessibility Checker plugin contains a cross-site scripting (XSS) vulnerability in versions up to 1.46.0. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf. The vulnerability affects the plugin's scope across the site.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript in other users' browsers to steal data or perform unauthorized actions.
Potential impact on your site
04Site Impact
Authenticated users' sessions and data are at risk; attackers can impersonate users and modify site content or settings.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., subscriber or contributor role) on the WordPress site.
Key dates
06Disclosure timeline
July 23, 2026
CVE published
