MJGuest 6.8 GT Cross Site Scripting Vulnerability

2008.07.31
Credit: irancrash_at_gmail.com
Risk: Low
Local: No
Remote: Yes
CVE: CVE-2008-3404
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

---------------------------------------------------------------- Script : MJGuest 6.8 GT Type : Cross Site Scripting Vulnerability Alert : Medium ---------------------------------------------------------------- Discovered by : Khashayar Fereidani Our Team : IRCRASH My Official Website : http://FEREIDANI.IR Khashayar Fereidani Email : irancrash [ a t ] gmail [ d o t] com ---------------------------------------------------------------- Khashayar Fereidani Offical Website : http://FEREIDANI.IR ---------------------------------------------------------------- Script Download : http://www.mdsjack.bo.it/files/mjguest_6.8gt.zip ---------------------------------------------------------------- XSS Vulnerability : Invalid Code : ./guestbook.js.php => document.write('' + '<?php echo $_GET['link']?>' + ''); Vulnerable variable : link Address : http://Example/guestbook.js.php?link=[XSS] Solution : Filter link variable with htmlsepcialchars() function . ---------------------------------------------------------------- Tnx : God http://IRCRASH.COM ----------------------------------------------------------------

References:

http://www.securityfocus.com/bid/30438
http://marc.info/?l=bugtraq&m=121743234408691&w=2


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