Support Board - Chat And Help Desk Plugin 1.2.3 on WordPress File Upload /wp-admin/admin-ajax.php msg Stored cross site scripting

Summaryinfo

A vulnerability was found in Support Board - Chat And Help Desk Plugin 1.2.3 on WordPress. It has been classified as problematic. This affects an unknown function of the file /wp-admin/admin-ajax.php of the component File Upload. This manipulation of the argument msg as part of Parameter causes cross site scripting (Stored). This vulnerability appears as CVE-2018-18373. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Support Board - Chat And Help Desk Plugin 1.2.3 on WordPress (Forum Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the file /wp-admin/admin-ajax.php of the component File Upload. The manipulation of the argument msg as part of a Parameter leads to a cross site scripting vulnerability (Stored). 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. The summary by CVE is:

In the Schiocco "Support Board - Chat And Help Desk" plugin 1.2.3 for WordPress, a Stored XSS vulnerability has been discovered in file upload areas in the Chat and Help Desk sections via the msg parameter in a /wp-admin/admin-ajax.php sb_ajax_add_message action.

The bug was discovered 10/16/2018. The weakness was presented 10/17/2018 (Website). It is possible to read the advisory at packetstormsecurity.com. This vulnerability is known as CVE-2018-18373 since 10/15/2018. The attack can be launched remotely. The requirement for exploitation is a single authentication. 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.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:wp-admin/admin-ajax.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Type

• Forum Software

Name

• Support Board - Chat And Help Desk Plugin

Version

• 1.2.3

CPE 2.3info

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• 🔍

CPE 2.2info

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• 🔍

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