The XML-RPC remote publishing interface in xmlrpc.php in WordPress before 3.0.3 does not properly check capabilities, which allows remote authenticated users to bypass intended access restrictions, and publish, edit, or delete posts, by leveraging the Author or Contributor role.

The create_post function in wp-includes/class-wp-atom-server.php in WordPress before 3.4.2 does not perform a capability check, which allows remote authenticated users to bypass intended access restrictions and publish new posts by leveraging the Contributor role and using the Atom Publishing Protocol (aka AtomPub) feature.

Cross-site request forgery (CSRF) vulnerability in the customizer in WordPress before 3.4.1 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

WordPress before 3.4.1 does not properly restrict access to post contents such as private or draft posts, which allows remote authors or contributors to obtain sensitive information via unknown vectors.

The make_clickable function in wp-includes/formatting.php in WordPress before 3.1.1 does not properly check URLs before passing them to the PCRE library, which allows remote attackers to cause a denial of service (crash) via a comment with a crafted URL that triggers many recursive calls.

Cross-site scripting (XSS) vulnerability in WordPress before 3.1.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The wp_create_nonce function in wp-includes/pluggable.php in WordPress 3.3.1 and earlier associates a nonce with a user account instead of a user session, which might make it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks on specific actions and objects by sniffing the network, as demonstrated by attacks against the wp-admin/admin-ajax.php and wp-admin/user-new.php scripts. NOTE: the vendor reportedly disputes the significance of this issue because wp_create_nonce operates as intended, even if it is arguably inconsistent with certain CSRF protection details advocated by external organizations

wp-comments-post.php in WordPress before 3.3.2 supports offsite redirects, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via unspecified vectors.

wp-includes/formatting.php in WordPress before 3.3.2 attempts to enable clickable links inside attributes, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via unspecified vectors.

Plupload before 1.5.4, as used in wp-includes/js/plupload/ in WordPress before 3.3.2 and other products, enables scripting regardless of the domain from which the SWF content was loaded, which allows remote attackers to bypass the Same Origin Policy via crafted content.