CVE-2026-116399

Unauthenticated Broken Access Control in InstaWP Connect <= 0.1.3.7 versions.

The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6. The plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled and is time limited to the migration period.

The InstaWP Connect plugin for WordPress has a missing authorization vulnerability, allowing exploitation of incorrectly configured access control security levels. This issue affects versions up to and including 0.1.2.5.

The InstaWP Connect plugin contains a missing authorization vulnerability that allows exploiting incorrectly configured access control security levels. The issue affects versions up to and including 0.1.1.9.