The RIPSTech group has a post to their site with the announcement of the return of their security-related advent calendar. This year, however, it comes in the form of the PHP Security Advent Calendar with more of a "common security problems in PHP" approach than a list of vulnerabilities.

The end of the year is coming closer and the cheery advent time begins. We are looking back at a spectacular year and it is time to thank and give back to the great PHP, infosec, and RIPS community. Thank you for developing, auditing, and securing your PHP applications with us in 2017!

Similar to last years advent of PHP application vulnerabilities where we released a new application vulnerability each day, we will release a new calendar gift from December 1st to 24th this year again. This time, we will focus on nifty PHP pitfalls and release a daily code challenge for you to solve. Can you spot the daily security bug?

As today is December 1st, the first item has been posted to the calendar covering the use of whitelists versus blacklists. Keep checking back daily for new updates to the calendar and the daily code challenges.