Loginizer, a popular plugin for protecting WordPress blogs from brute force attacks, has been found to contain its own severe vulnerabilities that could be exploited by hackers. The flaw, discovered by vulnerability researcher Slavco Mihajloski, opened up opportunities for cybercriminals to completely compromise WordPress sites. The flaw can be exploited if a user attempts to log into a Loginizer-protected website with a carefully-crafted username.

Sebastian Neef (@gehaxelt) is a IT security freelancer and a top contributor from the Detectify Crowdsource community. In this guest blog, he looks at ways WordPress plugins leak sensitive data in the wild: The OWASP Top 10 puts Sensitive Data Exposure on the 3rd place of the most common web security issues. In this blog post we will have a look at sensitive data exposure that you might not be aware of.