Security problem with wp-contact-form-iii ?

I’ve run an Acunetix security vuln scan on my WP site, and the only place where it flagged out a problem was this form.

It seems to suggest that scripting can be injected in to some of the fields in the form.

I enclose the warning that this flagged. You can replicate these results by running the free version of Acunetix on a site that uses this plugin – to verify whether this is a correct finding.

This script is possibly vulnerable to Cross Site Scripting (XSS) attacks.

Cross site scripting (also referred to as XSS) is a vulnerability that allows an attacker to send malicious code (usually in the form of Javascript) to another user. Because a browser cannot know if the script should be trusted or not, it will execute the script in the user context allowing the attacker to access any cookies or session tokens retained by the browser.

The impact of this vulnerability
Malicious users may inject JavaScript, VBScript, ActiveX, HTML or Flash into a vulnerable application to fool a user in order to gather data from them. An attacker can steal the session cookie and take over the account, impersonating the user. It is also possible to modify the content of the page presented to the user.