The changelog entry for the latest version of Companion Revision Manager is “Security update”. Looking at the changes made in that version we saw that protection against cross-site request forgery (CSRF) was added in one location and user input was being sanitized. In then looking at those changes we found that there had previously been remote code execution (RCE) vulnerability that had been exploitable through CSRF.

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This post provides insights on a vulnerability in the WordPress plugin Companion Revision Manager 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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