An issue was discovered in HSC Mailinspector 5.2.17-3 through v.5.2.18. An authenticated blind SQL injection vulnerability exists in the mliRealtimeEmails.php file. The ordemGrid parameter in a POST request to /mailinspector/mliRealtimeEmails.php does not properly sanitize input, allowing an authenticated attacker to execute arbitrary SQL commands, leading to the potential disclosure of the entire application database.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.