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YA Book 0.98 Persistent XSS
Apr 24 2007 03:28PM
omnipresent email it
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[_)|(_]\_|[ )(_](_.| \.net
"YA Book 0.98-alpha - Persistent XSS Vulnerability"
Date : 2007-04-23
Product : YA Book
Version : 0.98-alpha - Prior version maybe also be affected
Vendor : http://sourceforge.net/projects/yabook - http://www.phpee.com/
Vendor Status : 2007-04-23 -> Not Informed!
2007-04-24 -> Informed!
Description : YaBook- Ya Book! ...or yet another guestbook. YaBook is a simple but powerful guestbook running on PHP
5. It features easy installation and customization, multi-language support, and an administration
interface. Various database systems are supported.
Google Dork : Powered by YaBook 0.98-alpha - "Powered by YaBook 0.98-alpha"
Source : omnipresent - omni
E-mail : omnipresent[at]email[dot]it - omni[at]playhack[dot]net
Team : Playhack.net Security
2) Security Issues
--- [ Remote Persistent XSS ] ---
YA Book is vulnerable to an XSS. A malicous user can put in the City Field HTML or JS code
(in sigin module: http://host/path/index.php?mode=sign) as shown below:
The vulnerability exist because the city field is not properly sanitized before being used!
--- [ PoC ] ---
A guest can posts a new message and after put the right captcha :D he can puts in the city field a code like:
for a redirect with JS or.. he can injects other (eg: HTML, JS) codes..
Edit the source code to ensure that the input is properly sanitized before being used.
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