The WordPress developers have released a security update for their blogging platform WordPress, now raised to version 2.8.6. This security release version fixes two vulnerabilities relevant to multi-author blogs. These exploits can only be exploited by registered, logged in users with posting rights. If you have untrusted authors on your blog, upgrading to 2.8.6 is recommended. It is always recommended to update to the latest version of WordPress as soon as possible.
The first problem is an XSS vulnerability in Press This discovered by Benjamin Flesch. The second problem, discovered by Dawid Golunski, is an issue with sanitizing uploaded file names that can be exploited in certain Apache configurations. Thanks to Benjamin and Dawid for finding and reporting these.
WordPress 2.8.5 “Hardening Release” is released now. WordPress recommends every site to upgrade to the latest version. According to the WordPress Blog,
We have also been working on trying to make WordPress as secure as possible and during this process we have identified a number of security hardening changes that we thought were worth back-porting to the 2.8 branch so as to get these improvements out there and make all your sites as secure as possible.
A new version of the popular blogging platform WordPress was released just a few minutes ago. It is an unexpected upgrade considering that the last WordPress update was less than two weeks ago. The new update fixes a security vulnerability that affects all but the latest version of WordPress.
This update fixes an XSS vulnerability which could be used to create comment author URLs that would redirect the system administrator away from the blog’s website to another website for security exploit. All WordPress webmasters are encouraged to update their blogs as soon as possible to patch the security vulnerability and should not ignore this update.