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Insecure Library Loading
Moderately critical

vBulletin Cross-Site Scripting and Script Insertion

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Release Date:  2006-08-04    Last Update:  2006-08-25    Views:  14,877

Secunia Advisory SA21360

Where:

From remote

Impact:

Cross Site Scripting

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in vBulletin, which can be exploited by malicious people to conduct cross-site scripting and script insertion attacks.

1) Some unspecified input isn't properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

2) An input validation error in the attachment handling can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site by uploading a specially crafted PDF document containing embedded HTML and script code.

Successful exploitation requires that the malicious PDF document is accessed directly in the Microsoft Internet Explorer browser.

3) An error in the restriction of accessing global.php directly can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site by URL encoding the global.php filename in the URL and setting certain parameters.


Solution:
Update to version 2.3.10, 3.0.15, 3.5.5, or 3.6.0 (the releases were updated 2006-08-03 to include fixes for vulnerability #2).

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Reported by the vendor.
2) Stefan, EnigmaGroup
3) imei addmimistrator

Original Advisory:
Jelsoft Enterprises:
http://www.vbulletin.com/forum/showthread.php?t=194072
http://www.vbulletin.com/forum/showthread.php?t=194063
http://www.vbulletin.com/forum/showthread.php?t=194062
http://www.vbulletin.com/forum/showthread.php?t=194061

imei addmimistrator:
http://www.kapda.ir/advisory-397.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: vBulletin Cross-Site Scripting and Script Insertion

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