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
newbloguserkey instead of a determinate substring.
- Add escaping to the language attributes used on
- Ensure the attributes of enclosures are correctly escaped in RSS and Atom feeds.
The security problems has been reported by Rahul Pratap Singh and John Blackbourn.
Eleven other bugs were fixed in WordPress 4.9.1.