A vulnerability has been found in MODX CMS up to 0.9.6.2 (Content Management System) and classified as problematic. This vulnerability affects an unknown functionality of the file index.php. The manipulation of the argument id with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in index.php in MODx CMS 0.9.6.2 and earlier allows remote attackers to inject arbitrary web script or HTML via a JavaScript event in the username field, possibly related to snippet.ditto.php. NOTE: some sources list the id parameter as being affected, but this is probably incorrect based on the original disclosure.

The weakness was disclosed 01/22/2009 (Website). The advisory is shared for download at milw0rm.com. This vulnerability was named CVE-2008-5939 since 01/21/2009. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

A public exploit has been developed by RoMaNcYxHaCkEr and been published before and not just after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 60 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking.

The vulnerability is also documented in the databases at X-Force (46796) and Exploit-DB (7204). The entries 46015, 46014, 46013 and 46011 are pretty similar.

Productinfo

Type

• Content Management System

Vendor

• MODX

Name

• CMS

Version

• 0.9.6.0
• 0.9.6.1
• 0.9.6.2

License

• open-source

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CPE 2.2info

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