WordPress & amp; #39; press-this.php & amp; #39; Remote Security Bypass Vulnerability and repair

Affected Versions:
WordPress 3.1.1
WordPress 3.0.5
WordPress 3.0.4
WordPress 3.0.3
WordPress 3.0.2
WordPress 2.9.2
WordPress 2.9.1
WordPress 2.8.6
WordPress 2.8.5
WordPress 2.8.4
WordPress 2.8.3
WordPress 2.8.2
WordPress 2.8.1
WordPress 2.6.5
WordPress 2.6.2
WordPress 2.6.1
WordPress 2.5.1
WordPress 2.3.3
WordPress 2.3.2
WordPress 2.3.1
WordPress 2.2.3
WordPress 2.2.2
WordPress 2.2.1
WordPress 2.1.3
WordPress 2.1.2
WordPress 2.1.1
WordPress 2.0.11
WordPress 2.0.10
WordPress 2.0.7
WordPress 2.0.6
WordPress 2.0.5
WordPress 2.0.4
WordPress 2.0.3
WordPress 2.0.2
WordPress 2.0.1
WordPress 2.0
WordPress 1.5.2
WordPress 1.5.1. 3
WordPress 1.5.1. 2
WordPress 1.5.1
WordPress 1.5
WordPress 1.3.1
WordPress 1.2.2
WordPress 1.2.1
+ Gentoo Linux
WordPress 1.2
+ Gentoo Linux 1.4
+ Gentoo Linux
WordPress 0.71
WordPress 0.7
WordPress 3.1
WordPress 3.0.1
WordPress 2.9
WordPress 2.8
WordPress 2.6
WordPress 2.5
WordPress 2.3
WordPress 2.2 Revision 5003
WordPress 2.2 Revision 5002
WordPress 2.2
WordPress 2.1.3-RC2
WordPress 2.1.3-RC1
WordPress 2.1
WordPress 2.0.10-RC2
WordPress 2.0.10-RC1 vulnerability description:
Bugtraq ID: 47598

WordPress is a popular blog system.
When posting a post, the wp-admin/press-this.php script does not correctly check user permissions, and users do not need the "publish_posts" permission to post an article.
To successfully exploit this vulnerability, the "Contributor-level" privilege is required.

<* Reference
Http://secunia.com/advisories/44372/
*>

Vendor solutions
WordPress 3.1.2 has fixed this vulnerability. We recommend that you download and use it:
Http://codex.wordpress.org/Version_3.1.2