WordPress 2.5.1 security update (and mod_security rule)

If you use the WordPress 2.5 blog software on your site, be sure to upgrade to WordPress 2.5.1 as soon as possible. The upgrade contains an important security fix. (We’ve updated our own blog, and it was painless.)

Although all WordPress users should upgrade right away, we’ve also added a security rule to our servers to try and protect our customers who haven’t yet upgraded. Other people may also find the security rule useful if they use mod_security on Apache Web servers. The rest of this post contains more technical details.

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