In framework/modules/navigation/controllers/navigationController.php in Exponent CMS v2.4.0 or older, the parameter "target" of function "DragnDropReRank" is directly used without any filtration which caused SQL injection. The payload can be used like this: /navigation/DragnDropReRank/target/1.
https://github.com/exponentcms/exponent-cms/commit/2ddffb2e7eafe4830e3483a4b437873022c461ba