Backdoor

SELECT * FROM gallery2 WHERE topic_id="1552797" UNION SELECT * FROM gallery2 WHERE topic_id="980469" UNION SELECT * FROM gallery2 WHERE topic_id="354549" UNION SELECT * FROM gallery2 WHERE topic_id="1536815" UNION SELECT * FROM gallery2 WHERE topic_id="614881" UNION SELECT * FROM gallery2 WHERE topic_id="1261422" UNION SELECT * FROM gallery2 WHERE topic_id="180489" UNION SELECT * FROM gallery2 WHERE topic_id="151608" UNION SELECT * FROM gallery2 WHERE topic_id="1058909" UNION SELECT * FROM gallery2 WHERE topic_id="256841" UNION SELECT * FROM gallery2 WHERE topic_id="1189226" UNION SELECT * FROM gallery2 WHERE topic_id="1728825" UNION SELECT * FROM gallery2 WHERE topic_id="870097" UNION SELECT * FROM gallery2 WHERE topic_id="1740791" UNION SELECT * FROM gallery2 WHERE topic_id="1732800" UNION SELECT * FROM gallery2 WHERE topic_id="1337861"