What the vulnerability does
01Description
The Database for CF7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Array Form Field Values in all versions up to, and including, 1.2.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by unauthenticated attackers because Contact Form 7 accepts array-structured input for ordinary text fields (e.g., your-name[]) via the public REST API endpoint /wp-json/contact-form-7/v1/contact-forms/{id}/feedback, and the plugin stores submitted data using $wpdb INSERT with serialize() into a custom wp_cf7db table, bypassing WordPress save-time filtering via wp_insert_post/wp_kses.
Explanation of Vulnerability in Simple Terms
02Summary
Database for CF7 versions up to 1.2.6 contain a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts. The vulnerability affects the scope beyond the vulnerable component itself. No user interaction is required for exploitation. Site administrators should update to a version newer than 1.2.6.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in visitors' browsers and affect other parts of the site.
Potential impact on your site
04Site Impact
Visitors' browsers could execute attacker-controlled scripts, potentially stealing data or redirecting users.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
July 29, 2026
CVE published
July 29, 2026
Record updated
