WordPress Calls to Action <= 2.2.7 - Stored XSSSign up to our free email alerts service for instant vulnerability notifications!
The AJAX action ‘inbound_form_save’ allows unauthenticated users to update the content of any specific form on the site. In order to exploit this, a form ID must be enumerated using another unauthenticated AJAX action, ‘inbound_get_form_data’. Once a form ID has been enumerated, the content of the form may be overwritten a request like the one constructed in the PoC below. This allows for a Persistent XSS to be achieved on any page that a form is used, as no validation is performed on the input of the ‘shortcode’ field data.
fixed in version 2.2.8
|OWASP Top 10||A3: Cross-Site Scripting (XSS)|
|Publicly Published||2015-02-02 (over 3 years ago)|
|Added||2015-02-02 (over 3 years ago)|
|Last Updated||2015-05-15 (about 3 years ago)|
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