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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 6
https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/mystickymenu/tags/2.8.6/mystickymenu…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/mystickymenu/trunk/mystickymenu.php#…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?old_path=/mystickymenu/tags/2.8.6&…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/05d633f5-151a-4462-a6…
security@wordfence.com