The First Security- & Bugfix Release of the latest WordPress branch is now available. WordPress do not mention the vulnerabilities fixed on the download page, but BlogSec recommended 2.5 users upgrade ASAP.

Of all the bugs fixed, two fairly critical security issues were fixed. A Cross-Site Scripting vulnerability and the WP 2.5 Cookie Integrity Protection [...]

Steven J. Murdoch has discovered a vulnerability in WordPress 2.5 that may allow a registered user to gain admin level access on the blog. Only WP 2.5 blogs that permit users to register user accounts are vulnerable.

According to Steven:

This vulnerability exists because it is possible to modify
authentication cookies without invalidating the cryptographic
integrity [...]

A vulnerability has been found in Spreadsheet(wpSS) WordPress plugin.

The SQL Injection vulnerability may allow an attacker to compromise your backend database and potentially your blog and web server.

A public exploit has been released on milw0rm by 1ten0.0net1.

The ’ss_id’ parameter inside ss_load.php is not correctly escaped before being passed to the database.

It was reported that all [...]

José Carlos Nieto Jarquín has found a vulnerability affecting WordPress 2.5 ONLY. His advisory was released on SecurityFocus yesterday.

Our recent "Secure WordPress Whitepaper Revision" shows the new WordPress SECRET_KEY variable in the ‘wp-config.php’ file. This SECRET_KEY must be set to something random, as specified in the WordPress documentation. If not, it may be possible for [...]

Great news! We are pleased to announce, to our translators dismay, that we have revised our popular "How to Secure WordPress" whitepaper.

The new revision takes a more hands-on approach making it easier to follow and implement. New sections have been added to cover important topics like Spam and Blog Encryption.

Check out more information at the [...]