AdRotate – Ad manager & AdSense Ads <= 5.13.2 - Authenticated (Admin+) Double Extension Arbitrary File Upload

The AdRotate Banner Manager – The only ad manager you'll need plugin for WordPress is vulnerable to arbitrary file uploads due to missing file extension sanitization in the adrotate_insert_media() function in all versions up to, and including, 5.13.2. This makes it possible for authenticated attackers, with administrator-level access and above, to upload arbitrary files with double extensions on the affected site's server which may make remote code execution possible. This is only exploitable on select instances where the configuration will execute the first extension present.

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: AdRotate Banner Manager 5.13.3 closes this, and updating the plugin is the step that ends it.

• Firewall
• Scanner
• Alerts