Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.1 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type.

Versions of WordPress 3.9.x prior to 3.9.5 , 4.1.x prior to 4.1.4 , and 4.2.x prior to 4.2.1 are affected by an input validation flaw that allows an unauthenticated attacker to inject JavaScript into WordPress comments. This could result in a stored cross-site scripting attack being carried out when the affected comment is later viewed.

In the Debian squeeze-lts version of Wordpress, multiple security issues have been fixed :

Remote attackers could...

  - ... upload files with invalid or unsafe names

  - ... mount social engineering attacks

  - ... compromise a site via cross-site scripting

  - ... inject SQL commands

  - ... cause denial of service or information disclosure

CVE-2014-9031

Jouko Pynnonen discovered an unauthenticated cross site scripting vulnerability (XSS) in wptexturize(), exploitable via comments or posts.

CVE-2014-9033

Cross site request forgery (CSRF) vulnerability in the password changing process, which could be used by an attacker to trick an user into changing her password.

CVE-2014-9034

Javier Nieto Arevalo and Andres Rojas Guerrero reported a potential denial of service in the way the phpass library is used to handle passwords, since no maximum password length was set.

CVE-2014-9035

John Blackbourn reported an XSS in the 'Press This' function (used for quick publishing using a browser 'bookmarklet').

CVE-2014-9036

Robert Chapin reported an XSS in the HTML filtering of CSS in posts.

CVE-2014-9037

David Anderson reported a hash comparison vulnerability for passwords stored using the old-style MD5 scheme. While unlikely, this could be exploited to compromise an account, if the user had not logged in after a Wordpress 2.5 update (uploaded to Debian on 2 Apr, 2008) and the password MD5 hash could be collided with due to PHP dynamic comparison.

CVE-2014-9038

Ben Bidner reported a server side request forgery (SSRF) in the core HTTP layer which unsufficiently blocked the loopback IP address space.

CVE-2014-9039

Momen Bassel, Tanoy Bose, and Bojan Slavkovic reported a vulnerability in the password reset process: an email address change would not invalidate a previous password reset email.

CVE-2015-3438

Cedric Van Bockhaven reported and Gary Pendergast, Mike Adams, and Andrew Nacin of the WordPress security team fixed a cross-site-scripting vulnerabilitity, which could enable anonymous users to compromise a site. 

CVE-2015-3439

Jakub Zoczek discovered a very limited cross-site scripting vulnerability, that could be used as part of a social engineering attack.

CVE-2015-3440

Jouko Pynn&ouml;nen discovered a cross-site scripting vulnerability, which could enable commenters to compromise a site.

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

**WordPress 4.2 'Powell' **

  - Upstream announcement     https://wordpress.org/news/2015/04/powell/

**WordPress 4.2.1 Security Release**

  - Upstream announcement     https://wordpress.org/news/2015/04/wordpress-4-2-1/

**WordPress 4.2.2 Security and Maintenance Release**

  - Upstream announcement     https://wordpress.org/news/2015/05/wordpress-4-2-2/

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.

According to its version number, the WordPress application running on the remote web server is either version 3.7.x prior to 3.7.8, 3.8.x prior to 3.8.8, 3.9.x prior to 3.9.6, 4.1.x prior to 4.1.5, or 4.2.x prior to 4.2.2. It is, therefore, potentially affected by multiple cross-site scripting vulnerabilities :

  - An HTML file in the Genericons icon font package is     vulnerable to a cross-site scripting attack. This     package is used in various themes and plugins.

  - A cross-site scripting vulnerability exists that was     only partially fixed in the 4.2.1 release.

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

**WordPress 4.2 'Powell' **

  - Upstream announcement     https://wordpress.org/news/2015/04/powell/

**WordPress 4.2.1 Security Release**

  - Upstream announcement     https://wordpress.org/news/2015/04/wordpress-4-2-1/

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.

Multiple security issues have been discovered in Wordpress, a weblog manager, that could allow remote attackers to upload files with invalid or unsafe names, mount social engineering attacks or compromise a site via cross-site scripting, and inject SQL commands.

More information can be found in the upstream advisories at and

According to its version number, the WordPress application running on the remote web server is affected by an input validation flaw that allows an unauthenticated attacker to inject JavaScript into WordPress comments, which could result in a stored cross-site scripting attack being carried out when the affected comment is later viewed.
 Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
9027	WordPress < 3.9.5 / 4.1.x < 4.1.4 / 4.2.x < 4.2.1 Comments Stored XSS	Nessus Network Monitor	CGI	medium
83918	Debian DLA-236-1 : wordpress security update	Nessus	Debian Local Security Checks	medium
83751	Fedora 21 : wordpress-4.2.2-1.fc21 (2015-6808)	Nessus	Fedora Local Security Checks	medium
83750	Fedora 20 : wordpress-4.2.2-1.fc20 (2015-6790)	Nessus	Fedora Local Security Checks	medium
83351	WordPress Multiple XSS	Nessus	CGI abuses : XSS	medium
83315	Fedora 22 : wordpress-4.2.1-1.fc22 (2015-6778)	Nessus	Fedora Local Security Checks	medium
83236	Debian DSA-3250-1 : wordpress - security update	Nessus	Debian Local Security Checks	medium
83138	WordPress <= 3.9.5 / 4.1.x < 4.1.4 / 4.2.x < 4.2.1 Comments Stored XSS	Nessus	CGI abuses	medium

Detections

Analytics

CVE-2015-3440

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Tenable Plugins

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