MyBB "url" BBcode Tag and Administrative Section Cross Site Scripting Vulnerabilities


Description   Multiple vulnerabilities have been identified in MyBB (MyBulletinBoard), which could be exploited by attackers to execute arbitrary scripting code.
The first flaw is due to an input validation error in the "functions_post.php" script that fails to properly validate certain "url" BBcode tags, which could be exploited by attackers to cause malicious scripting code to be executed by the user's browser.
The second vulnerability is due to an input validation error in the "admin/global.php" script that fails to properly validate the "PHP_SELF" variable, which could be exploited by malicious people to conduct cross site scripting attacks.
     
Vulnerable Products   Vulnerable Software:
MyBB version 1.1.7 and prior
     
Solution   Upgrade to MyBB version 1.1.8 : http://www.mybboard.com/downloads.php
     
CVE   CVE-2006-4707
CVE-2006-4706
     
References   http://myimei.com/security/2006-08-15/mybb-117-htmlspeacialchar_uni-fixjavascript-functions_postphp-urlxss-attack.html
http://myimei.com/security/2006-08-17/mybb-117-adminglobalphp-xss-attack.html
     
Vulnerability Manager Detection   No
     
IPS Protection  
ASQ Engine alarm Available Since
XSS - Prevention - GET : suspicious 'iframe' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious tag with event found in data
3.2.0
XSS - Prevention - GET : suspicious tag with event found in URL
3.2.0
XSS - Prevention - GET : javascript code in flash clickTAG parameter
3.2.0
XSS - Prevention - POST : suspicious 'object' tag found in data
3.2.0
XSS - Prevention - GET : suspicious 'applet' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious 'applet' tag found in data
3.2.0
XSS - Prevention - POST : 'location' javascript object found in data
3.2.0
XSS - Phishing : suspicious 'div' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' attribute found in URL
3.2.0
XSS - Prevention - POST : javascript code found in data
3.2.0
XSS - Prevention - POST : suspicious 'iframe' tag found in data
3.2.0
XSS - Prevention - POST : code allowing cookie access found in data
3.2.0
XSS - Phishing : suspicious 'a' tag found in URL
3.2.0
XSS - Prevention - GET : cookie access attempt using script language found in URL
3.2.0
XSS - Prevention - GET : suspicious 'embed' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'object' tag found in URL
3.2.0
XSS - Phishing : suspicious 'form' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious 'embed' tag found in data
3.2.0
XSS - Prevention - POST : suspicious 'style' tag found in data
3.2.0
XSS - Prevention - GET : javascript code found in URL
3.2.0
XSS - Prevention - GET : 'script' tag in flash clickTAG parameter
3.2.0
XSS - Prevention - POST : suspicious 'div' tag found in data
3.2.0
XSS - Prevention - GET : evasion attempt using tag characters encoding in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' tag found in URL
3.2.0
XSS - Phishing : suspicious 'link' tag found in URL
3.2.0
XSS - Prevention - GET : 'script' tag found in URL
3.2.0
XSS - Prevention - POST : 'script' tag found in data
3.2.0
XSS - Prevention - POST : suspicious 'style' attribute found in data
3.2.0
XSS - Prevention - GET : 'location' javascript object found in URL
3.2.0
XSS - Prevention - GET : suspicious 'div' tag found in URL
3.2.0
     


 
 
 
 
 Risk level 
Low 

 Vulnerability First Public Report Date 
2006-08-31 

 Target Type 
Server 

 Possible exploit 
Local & Remote