Sticky Chat Widget <= 1.4.2 - Unauthenticated SQL Injection

Summary

The Sticky Chat Widget plugin for WordPress is vulnerable to SQL Injection via the 'scw_form_fields' parameter array keys of the 'scw_save_form_data' AJAX action in versions up to, and including, 1.4.2. This is due to the save_form_data() function passing attacker-controlled POST array keys unsanitized to $wpdb->insert(), which wraps column identifiers in backticks without escaping them, allowing a backtick in an attacker-supplied key to break out of the column-identifier list into raw SQL; additionally, the use of filter_input() bypasses WordPress's wp_magic_quotes() protection, and the widget_id validation loop is skipped entirely when no valid widget_id is supplied, leaving $isValid at 1. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Timeline

1. Sep 11, 2026, 3:39 AM UTCCVE published
2. Sep 11, 2026, 2:11 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: yes · Technical impact: partial

3. Sep 11, 2026, 2:12 PM UTCRecord last updated

Affected versions

• gingerplugins Sticky Chat Widget – Floating Chat Icons, Contact Form, Call, Click to Chat, Email & Message Buttons

  through 1.4.2

References 5