Vulnerability Details: Persistent Cross-Site Scripting (XSS) in Formidable Forms
The idea that popular WordPress plugins are secure is often disputed by reality as has been the case with the plugin Formidable Forms, which has had its two most recent releases fix fairly serious security vulnerabilities (the next version will likely fix a less serious vulnerability). The older of those two, fixed a PHP object injection vulnerability and the more recent fixed a persistent cross-site scripting (XSS) vulnerability. In regards to that latter issue, one of the changelog entries for the latest version is “Security: Correctly escape values on the View Entry page.” There were two sets of changes that could relate to that.
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This post provides insights on a vulnerability in the WordPress plugin Formidable Forms not discovered by us, where the discoverer hadn't provided the details needed for us to confirm the vulnerability while we were adding it to the data set for our service, so the rest of its contents are limited to subscribers of our service.
If you were using our service, you would have already been warned about this vulnerability if your website is vulnerable due to it. You can try out our service for free and then see the rest of the details of the vulnerability.
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