Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 3.0.5 allow remote authenticated users to inject arbitrary web script or HTML via vectors related to (1) the Quick/Bulk Edit title (aka post title or post_title), (2) post_status, (3) comment_status, (4) ping_status, and (5) escaping of tags within the tags meta box.

In order to protect against two CVEs*, I'm upgrading Wordpress in all releases to 3.1. In addition, this will obsolete wordpress-mu, since this functionality has been migrated to the main wordpress release as of wordpress 3.0, and wordpress-mu has been deprecated upstream. I would not normally make so drastic a change on any stable release, especially EPEL, but backporting patches to the 2.x series is becoming increasingly unmaintainable. This is already done for rawhide and F15, and I intend to build for F13, F14, EL5 and EL6 today, and send them to testing, and then push to stable one the appropriate period has elapsed.

Please redistribute this to anyone you know who might be affected and may not be on this list.

Thank you, Jon

* https://bugzilla.redhat.com/show_bug.cgi?id=687909 https://bugzilla.redhat.com/show_bug.cgi?id=687911

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update to 3.1 to fix multiple vulnerabilities and track upstream.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Two XSS bugs and one potential information disclosure issue were discovered in WordPress, a weblog manager. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2011-0700     Input passed via the post title when performing a 'Quick     Edit' or'Bulk Edit' action and via the 'post_status',     'comment_status', and 'ping_status' parameters is not     properly sanitised before being used. Certain input     passed via tags in the tags meta-box is not properly     sanitised before being returned to the user.

  - CVE-2011-0701     WordPress incorrectly enforces user access restrictions     when accessing posts via the media uploader and can be     exploited to disclose the contents of e.g. private or     draft posts.

The oldstable distribution (lenny) is not affected by these problems.

Versions of WordPress earlier than 3.0.5 are potentially affected by multiple vulnerabilities : 

  - The application is prone to multiple cross-site scripting vulnerabilities.  An attacker can exploit these issues through the 'title' field of the 'Quick/Bulk Edit' section and the 'tags meta box' section.  An attacker would require Author or Contributor privileges to take advantage of this.

  - The application is prone to an information-disclosure vulnerability.  An attacker can exploit this issue through the media uploader, disclosing posts.  This information may assist in further attacks.  An attacker would require Author privileges to take advantage of this.

According to its version number, the installation of WordPress hosted on the remote web server is affected by multiple vulnerabilities :

    - The application is prone to multiple cross-site     scripting vulnerabilities. An attacker can exploit     these issues through the 'title' field of the     'Quick/Bulk Edit' section and the 'tags meta box'     section. An attacker would require Author or     Contributor privileges to take advantage of this.

    - The application is prone to an information     disclosure vulnerability. An attacker can exploit this     issue through the media uploader to disclose posts.
    This information may assist in further attacks. An     attacker would require Author privileges to take     advantage of this.

Note that Nessus has not tested for the issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
53216	Fedora 14 : wordpress-3.1-1.fc14 (2011-3746)	Nessus	Fedora Local Security Checks	medium
53215	Fedora 13 : wordpress-3.1-1.fc13 (2011-3738)	Nessus	Fedora Local Security Checks	medium
52745	Fedora 15 : wordpress-3.1-1.fc15 (2011-3408)	Nessus	Fedora Local Security Checks	medium
52637	Debian DSA-2190-1 : wordpress - several vulnerabilities	Nessus	Debian Local Security Checks	medium
5785	WordPress < 3.0.5 Multiple Vulnerabilities	Nessus Network Monitor	CGI	medium
51939	WordPress < 3.0.5 Multiple Vulnerabilities	Nessus	CGI abuses	medium

Detections

Analytics

CVE-2011-0700

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium