Thinksns 2.5 to obtain webshell exp-vulnerability warning-the black bar safety net

Problem file: thumb.php Code analysis: ? php / automatic thumbnail parameters of the url|w|h|type="cut/full"|mark="text/image|r" thumb. php? url=/thinksns/data/userface/0 0 0/0 0/0 0/41middleface. jpg? 1 2 4 7 7 1 8 9 8 8&w=2 0&h=2 0 / errorreporting0; settimelimit3 0; $biggestmemorylimit = 2 5 6...