Vulnerability Description
The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the `stickymenu_contact_lead_form` AJAX action in all versions up to, and including, 2.8.6. This is due to the handler using attacker-controlled POST parameter names directly as SQL column identifiers in `$wpdb->insert()`. While parameter values are sanitized with `esc_sql()` and `sanitize_text_field()`, the parameter keys are used as-is to build the column list in the INSERT statement. This makes it possible for unauthenticated attackers to inject SQL via crafted parameter names, enabling blind time-based data extraction from the database.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.
- https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu.
- https://plugins.trac.wordpress.org/browser/mystickymenu/trunk/mystickymenu.php#L
- https://plugins.trac.wordpress.org/changeset?old_path=/mystickymenu/tags/2.8.6&n
- https://www.wordfence.com/threat-intel/vulnerabilities/id/05d633f5-151a-4462-a6a
FAQ
What is CVE-2026-3657?
CVE-2026-3657 is a vulnerability with a CVSS score of 7.5 (HIGH). The My Sticky Bar plugin for WordPress is vulnerable to SQL injection via the `stickymenu_contact_lead_form` AJAX action in all versions up to, and including, 2.8.6. This is due to the handler using a...
How severe is CVE-2026-3657?
CVE-2026-3657 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3657?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.