The changelog entry for version 2.1.1 of the plugin 2kb Amazon Affiliates Store is “Security fix, thanks to Ricardo”. In looking over the changes made in that version we found it was a reflected cross-site scripting (XSS) vulnerability that was fixed. (After we finished up writing this post a report was released from the discoverer of the vulnerability, but it is inaccurate in a number of ways).

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This post provides insights on a vulnerability in the WordPress plugin 2kb Amazon Affiliates Store 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.

For existing customers, please log in to your account to view the rest of the contents of the post.