Stored Cross-Site Scripting Vulnerability in WDES Responsive Popup Plugin for WordPress

CVE-2026-1804

What is CVE-2026-1804?

The WDES Responsive Popup plugin for WordPress is susceptible to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on user-supplied attributes in the 'wdes-popup-title' shortcode. Authenticated attackers with contributor-level access and above can exploit this vulnerability to inject arbitrary web scripts into pages, which would execute when other users access these compromised pages. This presents a significant security risk as it allows for unauthorized script execution within the user environment.

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