Ninja Forms up to 2.8.7 wp-admin/admin-ajax.php fields[1] cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Ninja Forms up to 2.8.7. The affected element is an unknown function of the file wp-admin/admin-ajax.php. Performing a manipulation of the argument fields[1] results in cross site scripting. This vulnerability is known as CVE-2015-2220. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Ninja Forms up to 2.8.7. It has been classified as problematic. This affects an unknown functionality of the file wp-admin/admin-ajax.php. The manipulation of the argument fields[1] 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. The summary by CVE is:

Multiple cross-site scripting (XSS) vulnerabilities in the Ninja Forms plugin before 2.8.9 for WordPress allow (1) remote attackers to inject arbitrary web script or HTML via the ninja_forms_field_1 parameter in a ninja_forms_ajax_submit action to wp-admin/admin-ajax.php or (2) remote administrators to inject arbitrary web script or HTML via the fields[1] parameter to wp-admin/post.php.

The weakness was published 03/05/2015 (Website). It is possible to read the advisory at wordpress.org. This vulnerability is uniquely identified as CVE-2015-2220 since 03/05/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

By approaching the search of inurl:wp-admin/admin-ajax.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.8.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 74857†). Similar entries are available at VDB-75357 and VDB-87376. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Ninja Forms

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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