Category: WordPress

WordPress 4.8.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.8.1 and earlier are affected by these security issues:

1. $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi). WordPress core is not directly vulnerable to this issue, but we’ve added hardening to prevent plugins and themes from accidentally causing a vulnerability. Reported by Slavco
2. A cross-site scripting (XSS) vulnerability was discovered in the oEmbed discovery. Reported by xknown of the WordPress Security Team.
3. A cross-site scripting (XSS) vulnerability was discovered in the visual editor. Reported by Rodolfo Assis (@brutelogic) of Sucuri Security.
4. A path traversal vulnerability was discovered in the file unzipping code. Reported by Alex Chapman (noxrnet).
5. A cross-site scripting (XSS) vulnerability was discovered in the plugin editor. Reported by 陈瑞琦 (Chen Ruiqi).
6. An open redirect was discovered on the user and term edit screens. Reported by Yasin Soliman (ysx).
7. A path traversal vulnerability was discovered in the customizer. Reported by Weston Ruter of the WordPress Security Team.
8. A cross-site scripting (XSS) vulnerability was discovered in template names. Reported by Luka (sikic).
9. A cross-site scripting (XSS) vulnerability was discovered in the link modal. Reported by Anas Roubi (qasuar).

Thank you to the reporters of these issues for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.8.2 contains 6 maintenance fixes to the 4.8 release series. For more information, see the release notes or consult the list of changes.

Download WordPress 4.8.2 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.8.2.

Thanks to everyone who contributed to 4.8.2.

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WordPress 4.7.5 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.7.4 and earlier are affected by six security issues:

1. Insufficient redirect validation in the HTTP class. Reported by Ronni Skansing.
2. Improper handling of post meta data values in the XML-RPC API. Reported by Sam Thomas.
3. Lack of capability checks for post meta data in the XML-RPC API. Reported by Ben Bidner of the WordPress Security Team.
4. A Cross Site Request Forgery (CSRF)  vulnerability was discovered in the filesystem credentials dialog. Reported by Yorick Koster.
5. A cross-site scripting (XSS) vulnerability was discovered when attempting to upload very large files. Reported by Ronni Skansing.
6. A cross-site scripting (XSS) vulnerability was discovered related to the Customizer. Reported by Weston Ruter of the WordPress Security Team.

Thank you to the reporters of these issues for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.7.5 contains 3 maintenance fixes to the 4.7 release series. For more information, see the release notes or consult the list of changes.

Download WordPress 4.7.5 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.7.5.

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WordPress 4.7.3 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.7.2 and earlier are affected by six security issues:

1. Cross-site scripting (XSS) via media file metadata.  Reported by Chris Andrè Dale, Yorick Koster, and Simon P. Briggs.
2. Control characters can trick redirect URL validation.  Reported by Daniel Chatfield.
3. Unintended files can be deleted by administrators using the plugin deletion functionality.  Reported by TrigInc and xuliang.
4. Cross-site scripting (XSS) via video URL in YouTube embeds.  Reported by Marc Montpas.
5. Cross-site scripting (XSS) via taxonomy term names.  Reported by Delta.
6. Cross-site request forgery (CSRF) in Press This leading to excessive use of server resources.  Reported by Sipke Mellema.

Thank you to the reporters for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.7.3 contains 39 maintenance fixes to the 4.7 release series. For more information, see the release notes or consult the list of changes.

Download WordPress 4.7.3 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.7.3.

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WordPress 4.7.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.7.1 and earlier are affected by three security issues:

1. The user interface for assigning taxonomy terms in Press This is shown to users who do not have permissions to use it. Reported by David Herrera of Alley Interactive.
2. WP_Query is vulnerable to a SQL injection (SQLi) when passing unsafe data. WordPress core is not directly vulnerable to this issue, but we’ve added hardening to prevent plugins and themes from accidentally causing a vulnerability. Reported by Mo Jangda (batmoo).
3. A cross-site scripting (XSS) vulnerability was discovered in the posts list table. Reported by Ian Dunn of the WordPress Security Team.
4. An unauthenticated privilege escalation vulnerability was discovered in a REST API endpoint. Reported by Marc-Alexandre Montpas of Sucuri Security. *

Thank you to the reporters of these issues for practicing responsible disclosure.

Download WordPress 4.7.2 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.7.2.

Thanks to everyone who contributed to 4.7.2.

* Update: An additional serious vulnerability was fixed in this release and public disclosure was delayed. For more information on this vulnerability, additional mitigation steps taken, and an explanation for why disclosure was delayed, please read Disclosure of Additional Security Fix in WordPress 4.7.2.

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This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.7 and earlier are affected by eight security issues:

1. Remote code execution (RCE) in PHPMailer – No specific issue appears to affect WordPress or any of the major plugins we investigated but, out of an abundance of caution, we updated PHPMailer in this release. This issue was fixed in PHPMailer thanks to Dawid Golunski and Paul Buonopane.
2. The REST API exposed user data for all users who had authored a post of a public post type. WordPress 4.7.1 limits this to only post types which have specified that they should be shown within the REST API. Reported by Krogsgard and Chris Jean.
3. Cross-site scripting (XSS) via the plugin name or version header on update-core.php. Reported by Dominik Schilling of the WordPress Security Team.
4. Cross-site request forgery (CSRF) bypass via uploading a Flash file. Reported by Abdullah Hussam.
5. Cross-site scripting (XSS) via theme name fallback. Reported by Mehmet Ince.
6. Post via email checks mail.example.com if default settings aren’t changed. Reported by John Blackbourn of the WordPress Security Team.
7. A cross-site request forgery (CSRF) was discovered in the accessibility mode of widget editing. Reported by Ronnie Skansing.
8. Weak cryptographic security for multisite activation key. Reported by Jack.

Thank you to the reporters for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.7.1 fixes 62 bugs from 4.7. For more information, see the release notes or consult the list of changes.

Download WordPress 4.7.1 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.7.1.

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WordPress 4.6.1 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.6 and earlier are affected by two security issues: a cross-site scripting vulnerability via image filename, reported by SumOfPwn researcher Cengiz Han Sahin; and a path traversal vulnerability in the upgrade package uploader, reported by Dominik Schilling from the WordPress security team.

Thank you to the reporters for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.6.1 fixes 15 bugs from 4.6. For more information, see the release notes or consult the list of changes.

Download WordPress 4.6.1 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.6.1.

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WordPress 4.5.3 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.5.2 and earlier are affected by several security issues: redirect bypass in the customizer, reported by Yassine Aboukir; two different XSS problems via attachment names, reported by Jouko Pynnönen and Divyesh Prajapati; revision history information disclosure, reported independently by John Blackbourn from the WordPress security team and by Dan Moen from the Wordfence Research Team; oEmbed denial of service reported by Jennifer Dodd from Automattic; unauthorized category removal from a post, reported by David Herrera from Alley Interactive; password change via stolen cookie, reported by Michael Adams from the WordPress security team; and some less secure sanitize_file_name edge cases reported by Peter Westwood of  the WordPress security team.

Thank you to the reporters for practicing responsible disclosure.

In addition to the security issues above, WordPress 4.5.3 fixes 17 bugs from 4.5, 4.5.1 and 4.5.2. For more information, see the release notes or consult the list of changes.

Download WordPress 4.5.3 or venture over to Dashboard → Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.5.3.

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WordPress 4.5.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.5.1 and earlier are affected by a SOME vulnerability through Plupload, the third-party library WordPress uses for uploading files. WordPress versions 4.2 through 4.5.1 are vulnerable to reflected XSS using specially crafted URIs through MediaElement.js, the third-party library used for media players. MediaElement.js and Plupload have also released updates fixing these issues.

Both issues were analyzed and reported by Mario Heiderich, Masato Kinugawa, and Filedescriptor from Cure53. Thanks to the team for practicing responsible disclosure, and to the Plupload and MediaElement.js teams for working closely with us to coordinate and fix these issues.

Download WordPress 4.5.2 or venture over to Dashboard ? Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.5.2.

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WordPress 4.4.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.4.1 and earlier are affected by a cross-site scripting vulnerability that could allow a site to be compromised.

For more details about what was fixed check out the details.

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WordPress 4.4.1 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.4 and earlier are affected by a cross-site scripting vulnerability that could allow a site to be compromised.

For more details about what was fixed check out the details.

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WordPress 4.2.4 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

This release addresses six issues, including three cross-site scripting vulnerabilities and a potential SQL injection that could be used to compromise a site, which were discovered by Marc-Alexandre Montpas of Sucuri, Helen Hou-Sandí of the WordPress security team, Netanel Rubin of Check Point, and Ivan Grigorov. It also includes a fix for a potential timing side-channel attack, discovered by Johannes Schmitt of Scrutinizer, and prevents an attacker from locking a post from being edited, discovered by Mohamed A. Baset.

Our thanks to those who have practiced responsible disclosure of security issues.

WordPress 4.2.4 also fixes four bugs. For more information, see the release notes or consult the list of changes.

Download WordPress 4.2.4 or venture over to Dashboard ? Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.2.4.

Already testing WordPress 4.3? The second release candidate is now available (zip) and it contains these fixes. For more on 4.3, see the RC 1 announcement post.

Reposted from WordPress.org

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WordPress 4.2.3 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately.

WordPress versions 4.2.2 and earlier are affected by a cross-site scripting vulnerability, which could allow users with the Contributor or Author role to compromise a site. This was initially reported by Jon Cave and fixed by Robert Chapin, both of the WordPress security team, and later reported by Jouko Pynnönen.

We also fixed an issue where it was possible for a user with Subscriber permissions to create a draft through Quick Draft. Reported by Netanel Rubin from Check Point Software Technologies.

Our thanks to those who have practiced responsible disclosure of security issues.

WordPress 4.2.3 also contains fixes for 20 bugs from 4.2. For more information, see the release notes or consult the list of changes.

Download WordPress 4.2.3 or venture over to Dashboard ? Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.2.3.

Reposted from WordPress.org

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WordPress 4.2.2 is now available. This is a critical security release for all previous versions and we strongly encourage you to update your sites immediately.

Version 4.2.2 addresses two security issues:

• The Genericons icon font package, which is used in a number of popular themes and plugins, contained an HTML file vulnerable to a cross-site scripting attack. All affected themes and plugins hosted on WordPress.org (including the Twenty Fifteen default theme) have been updated today by the WordPress security team to address this issue by removing this nonessential file. To help protect other Genericons usage, WordPress 4.2.2 proactively scans the wp-content directory for this HTML file and removes it. Reported by Robert Abela of Netsparker.
• WordPress versions 4.2 and earlier are affected by a critical cross-site scripting vulnerability, which could enable anonymous users to compromise a site. WordPress 4.2.2 includes a comprehensive fix for this issue. Reported separately by Rice Adu and Tong Shi.

The release also includes hardening for a potential cross-site scripting vulnerability when using the visual editor. This issue was reported by Mahadev Subedi.

Our thanks to those who have practiced responsible disclosure of security issues.

WordPress 4.2.2 also contains fixes for 13 bugs from 4.2. For more information, see the release notes or consult the list of changes.

Download WordPress 4.2.2 or venture over to Dashboard ? Updates and simply click “Update Now.” Sites that support automatic background updates are already beginning to update to WordPress 4.2.2.

Reposted from WordPress.org

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WordPress 4.2.1 is now available. This is a critical security release for all previous versions and we strongly encourage you to update your sites immediately.

A few hours ago, the WordPress team was made aware of a cross-site scripting vulnerability, which could enable commenters to compromise a site. The vulnerability was discovered by Jouko Pynnönen.

WordPress 4.2.1 has begun to roll out as an automatic background update, for sites that support those.

For more information, see the release notes or consult the list of changes.

Download WordPress 4.2.1 or venture over to Dashboard ? Updates and simply click “Update Now”.

Reposted from WordPress.org

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