WordPress Vulnerability Report – August 9, 2023

Since last week, only 30 total vulnerabilities emerged in public disclosure, but they include the popular Advanced Custom Fields (ACF) plugin. ACF is used on over two million active WordPress sites. Fortunately, a patch is available immediately for ACF and 27 other plugin vulnerabilities, so run those updates if you’re affected!

Additionally, there are two plugin vulnerabilities with no patch available yet. If you use an unpatched plugin or theme, check their vendors’ intentions and progress on a security release. Suppose no patch is forthcoming or the vulnerable software has been marked “closed” and dropped from the official WordPress theme and plugin repositories. In that case, you should consider deactivation and removal in favor of alternative solutions.

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WordPress Core News

WordPress 6.3 “Lionel” is out! This new release of WordPress was built to help you “create beautiful and compelling websites more efficiently than ever.” See what’s new in WordPress 6.3.

Don’t forget to fully back up your website before installing WordPress 6.3. BackupBuddy, the industry-leading data protection and recovery solution for WordPress, will help you build a strong backup strategy to manage all updates. Embrace the enhanced content creation experience of WordPress 6.3 with confidence — and a backup copy of your website safely stored on a remote server.

WordPress Core Vulnerabilities — Patched

  • No new WordPress core vulnerabilities were disclosed this week.

WordPress core is very secure when it’s properly configured and maintained. Vulnerable plugins not updated by site owners are the most common vector for attacks on WordPress websites. Our weekly WordPress Vulnerability Report, powered by Patchstack, covers new vulnerabilities that have emerged in plugins, themes, and/or WordPress core since last week’s report. Our goal is to spread awareness of emerging security threats and help you decide what to do if you find vulnerable software on your website. For a deeper analysis of recent trends in WordPress vulnerabilities and threat vectors, see our 2022 Annual Vulnerability Report.

These reports are published every Wednesday and include all active vulnerabilities tracked by Patchstack as of Monday since the previous report. This leaves a 48-hour window for the newest emerging vulnerabilities to be patched before full public disclosure. iThemes Security Pro users have access to vulnerability alerts emerging within this window.

WordPress Plugin Vulnerabilities — Patched

In this section, you’ll find the most recently disclosed WordPress plugin vulnerabilities fixed with a new release from their authors and maintainers. Please apply the updates if you are affected!

These vulnerabilities have been disclosed and scored for their severity, thanks to our friends at Patchstack. Each plugin listing includes the type of vulnerability with its CVE number and CVSS severity rating with links to more technical details. You’ll also see the number of active sites using the plugin and the plugin version release that patches the vulnerability. We start with the most popular plugins, representing the largest target for attackers.

Advanced Custom Fields

Product image for Advanced Custom Fields (ACF).

Vulnerability
Authenticated Cross Site Scripting (XSS)
The vulnerability has been patched, so you should update to version 6.1.8.

Duplicate Post

Product image for Duplicate Post.

Vulnerability
Cross Site Request Forgery (CSRF) via AJAX action
The vulnerability has been patched, so you should update to version 1.4.2.

TI WooCommerce Wishlist

Product image for TI WooCommerce Wishlist.

Vulnerability
Unauthenticated Blind SQL Injection via Rest API
The vulnerability has been patched, so you should update to version 2.7.4.

Change WP Admin

Product image for Change WP Admin Login.

Vulnerability
Secret Login Page Disclosure
CVE
2023-3604
The vulnerability has been patched, so you should update to version 1.1.4.

Media from FTP

Product image for Media from FTP.

The vulnerability has been patched, so you should update to version 11.16.

Themesflat Addons For Elementor

Product image for Themesflat Addons For Elementor.

Vulnerability
Unauthenticated PHP Object Injection
The vulnerability has been patched, so you should update to version 2.0.1.

Booking Package

Product image for Booking Package.

Vulnerability
Reflected Cross Site Scripting (XSS)
The vulnerability has been patched, so you should update to version 1.6.02.

Simple Blog Card

The vulnerability has been patched, so you should update to version 1.32.

Simple Blog Card

Vulnerability
Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
The vulnerability has been patched, so you should update to version 1.31.

Leyka

Product image for Leyka.

Plugin
Leyka
Vulnerability
Reflected Cross Site Scripting (XSS)
The vulnerability has been patched, so you should update to version 3.30.3.

Sign-up Sheets

Product image for Sign-up Sheets.

Vulnerability
Cross Site Request Forgery (CSRF)
The vulnerability has been patched, so you should update to version 2.2.9.

Upload Media By URL

Vulnerability
Cross Site Request Forgery (CSRF)
CVE
2023-3720
The vulnerability has been patched, so you should update to version 1.0.8.

Simple Ticker

Plugin
Simple Ticker
Vulnerability
Authenticated (Contributor+) Stored Cross Site Scripting (XSS)
The vulnerability has been patched, so you should update to version 3.06.

JetElements For Elementor

Vulnerability
Authenticated Remote Code Execution (RCE)
The vulnerability has been patched, so you should update to version 2.6.11.

Shop as a Customer for WooCommerce

Plugin
Shop as a Customer for WooCommerce
Vulnerability
Shop Manager+ Privilege Escalation
The vulnerability has been patched, so you should update to version 1.2.4.

Shop as a Customer for WooCommerce

Plugin
Shop as a Customer for WooCommerce
The vulnerability has been patched, so you should update to version 1.1.8.

Simple Share Follow Button

Vulnerability
Authenticated (Contributor+) Stored Cross Site Scripting (XSS) via Shortcode
The vulnerability has been patched, so you should update to version 1.04.

WordPress Plugin Vulnerabilities — Unpatched

This section contains plugin vulnerabilities with no known fix. Until a patch is available, you are advised to deactivate the plugin, at minimum, immediately. If there is a high risk of active exploits or the plugin remains unpatched for weeks, you are advised to delete the plugin. You should also delete persistently unpatched plugins the WordPress.org repository has locked and marked “Closed” so they can no longer be downloaded and installed.

Booster for Woocommerce

Product image for Booster for WooCommerce.

Vulnerability
Shop Manager+ Arbitrary Option Update
Patched in Version
No Fix
The vulnerability has not been patched. You should deactivate the plugin.

In this section, you’ll find the latest WordPress theme vulnerabilities to be disclosed. You’ll see the same information we provided above for vulnerable plugins, and the same advice applies. If a security update exists, install it immediately. If a vulnerability remains unpatched in a theme you are actively using, you must find an alternative theme. Deactivate and delete persistently unpatched themes and those marked “Closed” in the WordPress.org theme repository. If you have a vulnerable theme installed that you are not actively using, delete it.

  • No new WordPress theme vulnerabilities were disclosed this week.

Never worry about running a vulnerable plugin or theme again.

As you can see from this report, new WordPress plugin and theme vulnerabilities are disclosed every week. We know it can be difficult to stay on top of every reported vulnerability disclosure that matters to you, so the Themes Security Pro plugin makes it easy to ensure your site isn’t running a vulnerable theme, plugin, or version of WordPress core.

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