Danny van Kooten

2 exploits Active since Jan 2026
CVE-2026-1781 WRITEUP MEDIUM WRITEUP
MC4WP: Mailchimp for WordPress <=4.11.1 - Auth Bypass
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the `_mc4wp_action` parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source).
CVSS 6.5
CVE-2026-22850 WRITEUP HIGH WRITEUP
Koko Analytics <2.1.3 - SQL Injection
Koko Analytics is an open-source analytics plugin for WordPress. Versions prior to 2.1.3 are vulnerable to arbitrary SQL execution through unescaped analytics export/import and permissive admin SQL import. Unauthenticated visitors can submit arbitrary path (`pa`) and referrer (`r`) values to the public tracking endpoint in src/Resources/functions/collect.php, which stores those strings verbatim in the analytics tables. The admin export logic in src/Admin/Data_Export.php writes these stored values directly into SQL INSERT statements without escaping. A crafted path such as "),('999','x');DROP TABLE wp_users;-- breaks out of the value list. When an administrator later imports that export file, the import handler in src/Admin/Data_Import.php reads the uploaded SQL with file_get_contents, performs only a superficial header check, splits on semicolons, and executes each statement via $wpdb->query with no validation of table names or statement types. Additionally, any authenticated user with manage_koko_analytics can upload an arbitrary .sql file and have it executed in the same permissive way. Combined, attacker-controlled input flows from the tracking endpoint into exported SQL and through the import execution sink, or directly via malicious uploads, enabling arbitrary SQL execution. In a worst-case scenario, attackers can achieve arbitrary SQL execution on the WordPress database, allowing deletion of core tables (e.g., wp_users), insertion of backdoor administrator accounts, or other destructive/privilege-escalating actions. Version 2.1.3 patches the issue.
CVSS 8.3