Language: PHP
Label: vulnerable
CWE: CWE-829 \u2014 Inclusion of Functionality from Untrusted Control Sphere
The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

Code:
function runQuery($query){
   
    global $conn;			// MySQL connection variable.

    $runQuery = $conn->query($query);

    // Check If the syntax has any error then throw an the error. Otherwise return ture;
    if($runQuery === false) {

        // insert log 
        create_log($conn->error, debug_backtrace());

        // Keep the transaction error record
        $conn->get_all_error[] = $conn->error;

        return $conn->error; // Return the error

    } else {
        return true;
    }

}