The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_row POST parameter before concatenating it to an SQL query in 3_row-order.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.
https://wpscan.com/vulnerability/011500ac-17e4-4d4f-bbd9-1fec70511776