One of the ways we help to improve the security of WordPress plugins, not just for our customers, but for everyone using them, is the proactive monitoring of changes made to plugins in the Plugin Directory to try to catch serious vulnerabilities. That again has lead to us catching a vulnerability of a type that hackers are likely to exploit if they know about it. Since the check used to spot this is also included in our Plugin Security Checker (which is accessible through a WordPress plugin of its own), it is another of reminder of how that can help to indicate which plugins are in greater need of security review (for which we do as part of our main service as well as separately).

In the plugin WordPress Survey & Poll the value of a cookie, “wp_sap”, was passed through the unserialize() function in several locations, which could lead to PHP object injection. One of those locations was in the function enqueue_custom_scripts_and_styles() in the file /wordpress-survey-and-poll.php: [Read more]