The changelog for the latest version of CP Contact Form with PayPal is “Fixed XSS vulnerability in CSS edition”. Looking at the changes made we found that a reflected cross-site scripting (XSS) vulnerability had been fixed. In not a great sign of the developers concern for security this exact same vulnerability existed in another of their plugins, which they were notified of in October, but they didn’t fix it in this plugin at the time. We found that the plugin still contains another instance of the same type of vulnerability.

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This post provides insights on a vulnerability in the WordPress plugin CP Contact Form with PayPal 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.

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