WordPress 3.5.2 Security and Maintenance Release
The WordPress team just pushed out a new version of WordPress (3.5.2) that has some security bugs fixed. Straight from their release post, these are the security changes:
- Blocking server-side request forgery attacks, which could potentially enable an attacker to gain access to a site.
- Disallow contributors from improperly publishing posts, reported by Konstantin Kovshenin, or reassigning the post’s authorship, reported by Luke Bryan.
- An update to the SWFUpload external library to fix cross-site scripting vulnerabilities. Reported by mala and Szymon Gruszecki.
- Prevention of a denial of service attack, affecting sites using password-protected posts.
- An update to an external TinyMCE library to fix a cross-site scripting vulnerability. Reported by Wan Ikram.
- Multiple fixes for cross-site scripting. Reported by Andrea Santese and Rodrigo.
- Avoid disclosing a full file path when a upload fails. Reported by Jakub Galczyk.
One of the bigger actions from this release and the disclosure of the SWFUpload external library vulnerabilities in general is the announcement of a secure SWFUpload fork by the WordPress Core team.
The WordPress security team has officially forked the long-abandoned SWFUpload project and is strongly encouraging all web developers who use SWFUpload to update.
The team goes on to say they do not condone the use of abandonware, but they wish to make the web a better place by ensuring that developers have access to a secure version of SWFUpload.
They also encourage you to report any vulnerabilities found in the fork.
Quick Diff List
There weren’t many changes in this release, but these are all the modified files:
Files wordpress-3.5.1/readme.html and wordpress-3.5.2/readme.html differ Files wordpress-3.5.1/wp-admin/about.php and wordpress-3.5.2/wp-admin/about.php differ Files wordpress-3.5.1/wp-admin/edit-form-advanced.php and wordpress-3.5.2/wp-admin/edit-form-advanced.php differ Files wordpress-3.5.1/wp-admin/includes/class-wp-importer.php and wordpress-3.5.2/wp-admin/includes/class-wp-importer.php differ Files wordpress-3.5.1/wp-admin/includes/class-wp-upgrader.php and wordpress-3.5.2/wp-admin/includes/class-wp-upgrader.php differ Files wordpress-3.5.1/wp-admin/includes/file.php and wordpress-3.5.2/wp-admin/includes/file.php differ Files wordpress-3.5.1/wp-admin/includes/media.php and wordpress-3.5.2/wp-admin/includes/media.php differ Files wordpress-3.5.1/wp-admin/includes/post.php and wordpress-3.5.2/wp-admin/includes/post.php differ Files wordpress-3.5.1/wp-admin/includes/schema.php and wordpress-3.5.2/wp-admin/includes/schema.php differ Files wordpress-3.5.1/wp-admin/includes/update-core.php and wordpress-3.5.2/wp-admin/includes/update-core.php differ Files wordpress-3.5.1/wp-admin/includes/upgrade.php and wordpress-3.5.2/wp-admin/includes/upgrade.php differ Files wordpress-3.5.1/wp-admin/update.php and wordpress-3.5.2/wp-admin/update.php differ Files wordpress-3.5.1/wp-content/plugins/akismet/admin.php and wordpress-3.5.2/wp-content/plugins/akismet/admin.php differ Files wordpress-3.5.1/wp-content/plugins/akismet/akismet.css and wordpress-3.5.2/wp-content/plugins/akismet/akismet.css differ Files wordpress-3.5.1/wp-content/plugins/akismet/akismet.js and wordpress-3.5.2/wp-content/plugins/akismet/akismet.js differ Files wordpress-3.5.1/wp-content/plugins/akismet/akismet.php and wordpress-3.5.2/wp-content/plugins/akismet/akismet.php differ Files wordpress-3.5.1/wp-content/plugins/akismet/.htaccess and wordpress-3.5.2/wp-content/plugins/akismet/.htaccess differ Files wordpress-3.5.1/wp-content/plugins/akismet/readme.txt and wordpress-3.5.2/wp-content/plugins/akismet/readme.txt differ Files wordpress-3.5.1/wp-content/themes/twentyeleven/languages/twentyeleven.pot and wordpress-3.5.2/wp-content/themes/twentyeleven/languages/twentyeleven.pot differ Files wordpress-3.5.1/wp-content/themes/twentytwelve/languages/twentytwelve.pot and wordpress-3.5.2/wp-content/themes/twentytwelve/languages/twentytwelve.pot differ Files wordpress-3.5.1/wp-includes/class-feed.php and wordpress-3.5.2/wp-includes/class-feed.php differ Files wordpress-3.5.1/wp-includes/class-http.php and wordpress-3.5.2/wp-includes/class-http.php differ Files wordpress-3.5.1/wp-includes/class-oembed.php and wordpress-3.5.2/wp-includes/class-oembed.php differ Files wordpress-3.5.1/wp-includes/class-phpass.php and wordpress-3.5.2/wp-includes/class-phpass.php differ Files wordpress-3.5.1/wp-includes/class-wp-admin-bar.php and wordpress-3.5.2/wp-includes/class-wp-admin-bar.php differ Files wordpress-3.5.1/wp-includes/class-wp-xmlrpc-server.php and wordpress-3.5.2/wp-includes/class-wp-xmlrpc-server.php differ Files wordpress-3.5.1/wp-includes/comment.php and wordpress-3.5.2/wp-includes/comment.php differ Files wordpress-3.5.1/wp-includes/deprecated.php and wordpress-3.5.2/wp-includes/deprecated.php differ Files wordpress-3.5.1/wp-includes/formatting.php and wordpress-3.5.2/wp-includes/formatting.php differ Files wordpress-3.5.1/wp-includes/functions.php and wordpress-3.5.2/wp-includes/functions.php differ Files wordpress-3.5.1/wp-includes/http.php and wordpress-3.5.2/wp-includes/http.php differ Files wordpress-3.5.1/wp-includes/js/media-editor.js and wordpress-3.5.2/wp-includes/js/media-editor.js differ Files wordpress-3.5.1/wp-includes/js/media-editor.min.js and wordpress-3.5.2/wp-includes/js/media-editor.min.js differ Files wordpress-3.5.1/wp-includes/js/plupload/handlers.js and wordpress-3.5.2/wp-includes/js/plupload/handlers.js differ Files wordpress-3.5.1/wp-includes/js/plupload/handlers.min.js and wordpress-3.5.2/wp-includes/js/plupload/handlers.min.js differ Files wordpress-3.5.1/wp-includes/js/swfupload/handlers.js and wordpress-3.5.2/wp-includes/js/swfupload/handlers.js differ Files wordpress-3.5.1/wp-includes/js/swfupload/handlers.min.js and wordpress-3.5.2/wp-includes/js/swfupload/handlers.min.js differ Only in wordpress-3.5.1/wp-includes/js/swfupload: swfupload-all.js Files wordpress-3.5.1/wp-includes/js/swfupload/swfupload.swf and wordpress-3.5.2/wp-includes/js/swfupload/swfupload.swf differ Files wordpress-3.5.1/wp-includes/js/tinymce/plugins/media/moxieplayer.swf and wordpress-3.5.2/wp-includes/js/tinymce/plugins/media/moxieplayer.swf differ Files wordpress-3.5.1/wp-includes/js/tinymce/tiny_mce.js and wordpress-3.5.2/wp-includes/js/tinymce/tiny_mce.js differ Files wordpress-3.5.1/wp-includes/js/tinymce/wp-tinymce.js.gz and wordpress-3.5.2/wp-includes/js/tinymce/wp-tinymce.js.gz differ Files wordpress-3.5.1/wp-includes/media-template.php and wordpress-3.5.2/wp-includes/media-template.php differ Files wordpress-3.5.1/wp-includes/pluggable.php and wordpress-3.5.2/wp-includes/pluggable.php differ Files wordpress-3.5.1/wp-includes/post.php and wordpress-3.5.2/wp-includes/post.php differ Files wordpress-3.5.1/wp-includes/post-template.php and wordpress-3.5.2/wp-includes/post-template.php differ Files wordpress-3.5.1/wp-includes/rss.php and wordpress-3.5.2/wp-includes/rss.php differ Files wordpress-3.5.1/wp-includes/script-loader.php and wordpress-3.5.2/wp-includes/script-loader.php differ Files wordpress-3.5.1/wp-includes/user.php and wordpress-3.5.2/wp-includes/user.php differ Files wordpress-3.5.1/wp-includes/version.php and wordpress-3.5.2/wp-includes/version.php differ Files wordpress-3.5.1/wp-includes/wp-db.php and wordpress-3.5.2/wp-includes/wp-db.php differ Files wordpress-3.5.1/wp-login.php and wordpress-3.5.2/wp-login.php differ
Please make sure to update as soon as you can, it’s not super awesome to be running around with old and insecure versions of any software 
Read more: WordPress 3.5.2 Security and Maintenance Release
Story added 21. June 2013, content source with full text you can find at link above.