PR07-18: Cross-site Scripting (XSS) / HTML injection on Webbler CMS admin login page (1)
This advisory has been published following consultation with UK CPNI (formerly known as NISCC)
Date Found: 14th June 2007
Successfully tested on: Webbler CMS version 3.1.3. Earlier versions are possibly affected as well.
Note: the version number is usually included within 'meta' HTML tags and 'X-Powered-By' HTTP response headers. i.e.:
<meta name="generator" content="webbler 3.1.3 -http://tincan.co.uk/webbler" />
X-Powered-By: webbler version 3.1.3
Webbler CMS is vulnerable to XSS within the "/uploader/index.php" server-side script and 'page' parameter.
No authentication is required to exploit this vulnerability.
An attacker may be able to cause execution of malicious scripting code in the browser of a user who clicks on a link to a site generated/managed by Webbler CMS. HTML tags can also be injected.
This type of attack can result in non-persistent defacement of the target site, or the redirection of confidential information to unauthorised third parties.
XSS Proof of concept (PoC) URL:
HTML injection PoC URL:
Successfully tested on:
Webbler CMS 3.1.3 PHP 5.1.6 Apache web server (unknown version)
Microsoft Internet Explorer 7.0.5730.11
Author: Adrian Pastor of ProCheckUp [adrian.pastor [at] procheckup.com]
ProCheckUp thanks Tincan for fixing this vulnerability so promptly.
http://tincan.co.uk/webbler http://tincan.co.uk/?lid=1975 http://www.procheckup.com/Vulner_2007.php
This issue has been fixed on version version 3.1.6.
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