vlbook Input Validation Hole in Message Field Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID: 1016379|
SecurityTracker URL: http://securitytracker.com/id/1016379
(Links to External Site)
Updated: May 9 2009|
Original Entry Date: Jun 26 2006
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information|
Exploit Included: Yes |
A vulnerability was reported in vlbook. A remote user can conduct cross-site scripting attacks.|
The message field does not properly filter HTML code from user-supplied input before displaying the input. A remote user can submit specially crafted text that, when viewed by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the vlbook software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Omnipresent reported this vulnerability.
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the vlbook software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.|
No solution was available at the time of this entry.|
Vendor URL: vlbook.com/ (Links to External Site)
Input validation error|
|Underlying OS: Linux (Any), UNIX (Any), Windows (Any)|
Source Message Contents
Subject: vlbook 1.2 XSS Bug|
vlBook 1.02 Advisory
2005 June 23
The vlbook is a free, open source and light-weight guestbook written in PHP using flat files to store messages
and settings. It comes with install script for quick and effortless installation. Features include a WYSIWYG Editor,
template based skins, multilingual support, avatars packs and more.
- XSS Vulnerability -
This product is vulnerable to an XSS Attack. The variable message is not properly sanitised before being used; so a malicious
people can inject arbitrary XSS code.
PoC 0f XSS:
If an attacker put in the field "Message*:" this code:
Informed but I've not received the reply.