Category Archives: Advisories

Advisories

WordPress 5.8.3 Security Release

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This security release features four security fixes. Because this is a security release, it is recommended that you update your sites immediately. All versions since WordPress 3.7 have also been updated.

WordPress 5.8.3 is a short-cycle security release. The next major release will be version 5.9, which is already in the Release Candidate stage.

You can update to WordPress 5.8.3 by downloading from WordPress.org or visiting your Dashboard → Updates and clicking Update Now.

If you have sites that support automatic background updates, they’ve already started the update process.

Security Updates

Four security issues affect WordPress versions between 3.7 and 5.8. If you haven’t yet updated to 5.8, all WordPress versions since 3.7 have also been updated to fix the following security issue (except where noted otherwise):

Props to Karim El Ouerghemmi and Simon Scannell of SonarSource for disclosing an issue with stored XSS through post slugs.Props to Simon Scannell of SonarSource for reporting an issue with Object injection in some multisite installations.Props to ngocnb and khuyenn from GiaoHangTietKiem JSC for working with Trend Micro Zero Day Initiative on reporting a SQL injection vulnerability in WP_Query.Props to Ben Bidner from the WordPress security team for reporting a SQL injection vulnerability in WP_Meta_Query (only relevant to versions 4.1-5.8).

Thank you to all of the reporters above for privately disclosing the vulnerabilities. This gave the security team time to fix the vulnerabilities before WordPress sites could be attacked. Thank you to the members of the WordPress security team for implementing these fixes in WordPress.

For more information, check out the 5.8.3 HelpHub documentation page.

Thanks and props!

The 5.8.3 release was led by @desrosj and @circlecube.

In addition to the security researchers and release squad members mentioned above, thank you to everyone who helped make WordPress 5.8.3 happen:

Alex Concha, Dion Hulse, Dominik Schilling, ehtis, Evan Mullins, Jake Spurlock, Jb Audras, Jonathan Desrosiers, Ian Dunn, Peter Wilson, Sergey Biryukov, vortfu, and zieladam.

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Advisories

[R1] Nessus Network Monitor 6.0.0 Fixes Multiple Third-party Vulnerabilities

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Nessus Network Monitor leverages third-party software to help provide underlying functionality. One of the third-party components (OpenSSL) was found to contain vulnerabilities, and updated versions have been made available by the providers.

Out of caution and in line with best practice, Tenable opted to upgrade the bundled OpenSSL components to address the potential impact of these issues. Nessus Network Monitor 6.0.0 updates OpenSSL to version 1.1.1l to address the identified vulnerabilities.

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Advisories

[R1] Tenable.sc 5.20.0 Fixes Multiple Vulnerabilities

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Tenable.sc versions 5.14.0 through 5.19.1 were found to contain a remote code execution vulnerability which could allow a remote, unauthenticated attacker to execute code under special circumstances. An attacker would first have to stage a specific file type in the web server root of the Tenable.sc host prior to remote exploitation.

Also, Tenable.sc leverages third-party software to help provide underlying functionality. One of the third-party components (Apache) was found to contain vulnerabilities, and updated versions have been made available by the providers.

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Advisories

Drupal core – Moderately critical – Cross Site Scripting – SA-CORE-2021-011

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Project: 
Drupal core
Date: 
2021-November-17
Security risk: 
Moderately critical 13∕25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default
Vulnerability: 
Cross Site Scripting
Description: 

The Drupal project uses the CKEditor library for WYSIWYG editing. CKEditor has released a security update that impacts Drupal, along with a hotfix for that update.

Vulnerabilities are possible if Drupal is configured to allow use of the CKEditor library for WYSIWYG editing. An attacker that can create or edit content (even without access to CKEditor themselves) may be able to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.

For more information, see CKEditor’s security advisories:

CVE-2021-41165: HTML comments vulnerability allowing to execute JavaScript code
CVE-2021-41164: Advanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTML

This advisory is not covered by Drupal Steward.

Solution: 

Install the latest version:

If you are using Drupal 9.2, update to Drupal 9.2.9.
If you are using Drupal 9.1, update to Drupal 9.1.14.
If you are using Drupal 8.9, update to Drupal 8.9.20.

Versions of Drupal prior to 9.1.x are end-of-life and do not receive security coverage.

Note that Drupal 8 has reached its end of life so this is the final security release provided for Drupal 8.

Drupal 7 core does not include the CKEditor module and therefore is not affected.

Reported By: 
Jacek Bogdański coordinated on the release with Drupal project.
See the CKEditor announcements above for the original reporters of the vulnerabilities.
Fixed By: 
xjm of the Drupal Security Team
Wim Leers
Greg Knaddison of the Drupal Security Team
Lauri Eskola
Ted Bowman

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Advisories

WordPress 5.8.2 Security and Maintenance Release

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WordPress 5.8.2 is now available!

This security and maintenance release features 2 bug fixes in addition to 1 security fix. Because this is a security release, it is recommended that you update your sites immediately. All versions since WordPress 5.2 have also been updated.

WordPress 5.8.2 is a small focus security and maintenance release. The next major release will be version 5.9.

You can download WordPress 5.8.2 by downloading from WordPress.org, or visit your Dashboard → Updates and click Update Now. If you have sites that support automatic background updates, they’ve already started the update process.

For more information, browse the full list of changes on Trac, or check out the version 5.8.2 HelpHub documentation page.

Thanks and props!

The 5.8.2 release was led by Jonathan Desrosiers and Evan Mullins.

In addition to the release squad members mentioned above, thank you to everyone who helped make WordPress 5.8.2 happen:

Ari Stathopoulos, Bradley Taylor, davidwebca, Evan Mullins, Greg Ziółkowski, Jonathan Desrosiers, Juliette Reinders Folmer, Mukesh Panchal, Sergey Biryukov, shimon246, and Yui.

Props @circlecube and @pbiron for peer review.

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