WordPress 4.9.1 has now been released. This update is a security and maintenance release for all versions since WordPress 3.7. WPScans strongly encourage you to update your WordPress sites immediately. WordPress versions 4.9 and earlier are affected by four security issues which could potentially be exploited as part of a multi-vector attack. As part of the core team’s ongoing commitment to security hardening, the following fixes have been implemented in 4.9.1: Use a properly generated hash for the newbloguser key instead of a determinate substring. Add escaping to the language attributes used on html elements. Ensure the attributes of enclosures are correctly escaped in RSS and Atom feeds. Remove the ability to upload JavaScript files for users who do not have the unfiltered_html capability. The security problems has[…]

A new WordPress version was just release. This new version addresses a security problem with the $wpdb->prepare() function. From the release notes: WordPress versions 4.8.2 and earlier are affected by an issue where $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi). WordPress core is not directly vulnerable to this issue, but we’ve added hardening to prevent plugins and themes from accidentally causing a vulnerability. Reported by Anthony Ferrara. As the above notes says the vulnerability might affect thousands of plugins or themes and Anthony has more technical information on his blog here. WPScans.com has been updated to check for this vulnerability.