i got this exploit from a friend. his name is Mustafa Can Bjorn but everybody knows him as nukedx ps: i dont know if this exploit was given before so dont be angry pls if you already know this exploit here's the exploit : Vendor: MKPortal (http://www.mkportal.it/) Version: 1.1 RC1 and prior versions must be affected. (Runs on vBulletin!) About: Via this methods remote attacker can inject arbitrary SQL queries to ind parameter in index.php of MKPortal. Vulnerable code can be found in the file mkportal/include/VB/vb_board_functions.php at line 35-37, as you can see it easy to by pass this SQL update function. Also there is cross-site scripting vulnerability in pm_popup.php the parameters u1,m1,m2,m3,m4 did not sanitized properly. Level: Critical --- How&Example: SQL Injection : GET -> http://[victim]/[mkportaldir]/index.php?ind= EXAMPLE -> [url]http://[victim]/[/url][mkportaldir]/index.php?ind=',userid='1 So with this example remote attacker updates his session's userid to 1 and after refreshing the page he can logs as userid 1. XSS: GET -> [url]http://[victim]/[/url][mkportaldir]/includes/pm_popup.php?u1=[XSS]&m1=[XSS]&m2=[XSS]&m3=[XSS]&m4=[XSS] --- Timeline: * 21/04/2006: Vulnerability found. * 21/04/2006: Contacted with vendor and waiting reply. --- Exploit: http://www.nukedx.com/?getxpl=26 --- Dorks: "MKPortal 1.1 RC1" --- Original advisory can be found at: http://www.nukedx.com/?viewdoc=26