Exponent CMS up to 2.2.1 index.php src cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in Exponent CMS up to 2.2.1. Impacted is an unknown function of the file index.php. The manipulation of the argument src results in cross site scripting. This vulnerability is cataloged as CVE-2014-8690. The attack may be launched remotely. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Exponent CMS up to 2.2.1 (Content Management System). Affected is some unknown functionality of the file index.php. The manipulation of the argument src with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

Multiple cross-site scripting (XSS) vulnerabilities in Exponent CMS before 2.1.4 patch 6, 2.2.x before 2.2.3 patch 9, and 2.3.x before 2.3.1 patch 4 allow remote attackers to inject arbitrary web script or HTML via the (1) PATH_INFO, the (2) src parameter in a none action to index.php, or the (3) "First Name" or (4) "Last Name" field to users/edituser.

The weakness was shared 02/19/2015 (Website). The advisory is shared for download at exponentcms.org. This vulnerability is traded as CVE-2014-8690 since 11/09/2014. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

A public exploit has been developed by Mayuresh Dani and been published before and not just after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 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.

Upgrading to version 2.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (100877), Exploit-DB (36059) and OSVDB (118263†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Exponent

Name

• CMS

Version

• 2.2.0
• 2.2.1

License

• open-source

CPE 2.3info

• 🔍
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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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