Stored Cross-Site Scripting in QuestionPro Surveys Plugin for WordPress

CVE-2026-1901

What is CVE-2026-1901?

The QuestionPro Surveys plugin for WordPress is susceptible to Stored Cross-Site Scripting (XSS) due to inadequate input sanitization and output escaping on user-supplied attributes. This vulnerability affects all versions up to and including 1.0. Authenticated attackers with Contributor-level access or higher can exploit this flaw by injecting arbitrary scripts via the 'questionpro' shortcode. The malicious scripts are executed when a user accesses the compromised page, potentially leading to session hijacking, data theft, or site defacement.

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