Serendipity 'to_r_list' Parameter Cross Site Scripting Vulnerability

Bugtraq ID:	62095
Class:	Input Validation Error
CVE:	CVE-2013-5670
Remote:	Yes
Local:	No
Published:	Sep 02 2013 12:00AM
Updated:	Sep 02 2013 12:00AM
Credit:	Sammy FORGIT
Vulnerable:	S9Y Serendipity 1.7.1 S9Y Serendipity 1.6.1 S9Y Serendipity 1.6
Not Vulnerable:

Serendipity 'to_r_list' Parameter Cross Site Scripting Vulnerability

Serendipity is prone to a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Versions prior to Serendipity 1.7.3 are vulnerable.

Serendipity 'to_r_list' Parameter Cross Site Scripting Vulnerability

An attacker can exploit this issue by enticing an unsuspecting victim to follow a malicious URI.

The following example URI is available:

http://www.example.com/htmlarea/plugins/SpellChecker/spell-check-savedicts.php?to_r_list=%3Cscript%3Ealert%28123%29%3C/script%3E

Serendipity 'to_r_list' Parameter Cross Site Scripting Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Serendipity 'to_r_list' Parameter Cross Site Scripting Vulnerability

References:

• Serendipity Homepage (S9Y)