Ninja Tables – Easy Data Table Builder <= 5.0.18 - Unauthenticated PHP Object Injection to Limited Remote Code Execution

The Ninja Tables – Easy Data Table Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.0.18 via deserialization of untrusted input from the args[callback] parameter . This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to execute arbitrary functions, though it does not allow user supplied parameters only single functions can be called so the impact is limited.

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: 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: Ninja Tables 5.0.19 closes this, and updating the plugin is the step that ends it.

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