Vanilla Forums Tagging Plugin Discussion/Tags Script Insertion Vulnerability


Description   Henry Hoggard has discovered a vulnerability in Vanilla Forums, which can be exploited by malicious users to conduct script insertion attacks.
Input passed via the "Discussion/Tags" parameter when creating or editing discussions is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site if malicious data is viewed.
Successful exploitation requires the Tagging plugin to be enabled.
The vulnerability is confirmed in version 2.0.18.4 running with Tagging plugin version 1.1p1.
     
Vulnerable Products   Vulnerable Software:
Vanilla Forums 2.x
     
Solution   Edit the source code to ensure that input is properly sanitised.
     
CVE  
     
References   http://www.henryhoggard.co.uk/security/vanilla-tagging-stored-xss/
     
Vulnerability Manager Detection   No
     
IPS Protection  
ASQ Engine alarm Available Since
XSS - Prevention - POST : suspicious tag with event found in data
3.2.0
XSS - Prevention - POST : suspicious 'meta' tag found in data
3.2.0
XSS - Prevention - POST : suspicious 'object' tag found in data
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 - 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 - Prevention - POST : suspicious 'img' attribute found in data
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 - POST : suspicious 'div' tag found in data
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 - POST : suspicious 'style' tag found in data
5.0.0
XSS - Prevention - POST : javascript code found in data
5.0.0
XSS - Prevention - POST : suspicious tag with event found in data
5.0.0
XSS - Prevention - POST : suspicious 'embed' tag found in data
5.0.0
XSS - Prevention - POST : 'location' javascript object found in data
5.0.0
XSS - Prevention - POST : code allowing cookie access found in data
5.0.0
XSS - Prevention - POST : 'script' tag found in data
5.0.0
XSS - Prevention - POST : suspicious 'style' attribute found in data
5.0.0
XSS - Prevention - POST : suspicious 'applet' tag found in data
5.0.0
XSS - Prevention - POST : suspicious 'div' tag found in data
5.0.0
XSS - Prevention - POST : suspicious 'img' attribute found in data
5.0.0
XSS - Prevention - POST : suspicious 'meta' tag found in data
5.0.0
XSS - Prevention - POST : suspicious 'object' tag found in data
5.0.0
XSS - Prevention - POST : suspicious 'iframe' tag found in data
5.0.0
     


 
 
 
 
 Risk level 
Low 

 Vulnerability First Public Report Date 
2012-06-04 

 Target Type 
Server 

 Possible exploit 
Remote