The InfiniteWP Client plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.13.0 via the ‘historyID’ parameter of the ~/debug-chart/index.php file. This makes it possible for unauthenticated attackers to read .txt files outside of the intended directory.
This vulnerability affects the following application versions:
- InfiniteWP Client 1.8.1
- InfiniteWP Client 1.8.3
- InfiniteWP Client 1.8.5
- InfiniteWP Client 1.8.6
- InfiniteWP Client 1.9.4.1
- InfiniteWP Client 1.9.4.4