Question 1

What is the Booster for WooCommerce plugin?

Accepted Answer

What is the Booster for WooCommerce plugin?

Booster for WooCommerce is a popular eCommerce plugin for WordPress and WooCommerce sites. It aims to optimize and enhance stores with various performance tools and additional features. The plugin has over 3 million downloads and is actively used on over 60,000 sites. It is developed by Pluggabl and has been available since 2015.

Question 2

How severe is this vulnerability?

Accepted Answer

How severe is this vulnerability?

This vulnerability is considered medium severity with a CVSS base score of 6.4. However, it still poses significant risks if exploited. The ability for attackers to conduct stored cross-site scripting attacks can enable account takeovers, data theft, phishing scams, and other malicious activities. So while not critical severity, businesses should still treat this vulnerability seriously.

Question 3

Could this vulnerability impact my site?

Accepted Answer

Could this vulnerability impact my site?

If you have the Booster for WooCommerce plugin installed in a version up to and including 7.1.2, then yes, your site is vulnerable. The vulnerability arises specifically from the 'wcj_image' shortcode, so any page using that shortcode could be a target. Check your plugin version and scan your pages to assess your risk exposure.

Question 4

What specific damage could an attacker do by exploiting this?

Accepted Answer

What specific damage could an attacker do by exploiting this?

Through stored cross-site scripting in the vulnerable shortcode, attackers could inject malicious JavaScript. This code would execute for any user that visits a compromised page. Potential impacts include: stealing session cookies to hijack accounts, extracting customer data, injecting phishing forms, defacing sites, and more.

Question 5

How can I tell if my site has been compromised already?

Accepted Answer

How can I tell if my site has been compromised already?

Carefully check your WordPress site for any unauthorized changes, especially to key pages like login, checkout, and account details pages. Unexpected redirects, new admin accounts, and unknown JavaScript are all signs of a potential compromise. You may need a security expert to fully audit your site if exploits are suspected.

Question 6

Should I just remove the Booster plugin to be safe?

Accepted Answer

Should I just remove the Booster plugin to be safe?

Removing the plugin will eliminate the vulnerability going forward. However, your site could still be compromised from past exploitation if attackers injected hidden backdoors. So it is wise to still thoroughly audit your site even if disabling or removing Booster as a precaution.

Question 7

What version of Booster fixes this vulnerability?

Accepted Answer

What version of Booster fixes this vulnerability?

Booster for WooCommerce version 7.1.3 resolves this vulnerability in the 'wcj_image' shortcode. All sites should update to 7.1.3 or higher immediately to patch the security flaw. Make sure auto-updates are enabled to get new releases as they become available.

Question 8

How do I update Booster for WooCommerce?

Accepted Answer

How do I update Booster for WooCommerce?

In your WordPress dashboard, go to Plugins > Installed Plugins. Find Booster for WooCommerce and click “Update Now” if an update is available. If you have concerns, you can download the new version manually and install via zip file as well. Just be sure to get version 7.1.3 or higher.

Question 9

Are other plugins from this developer vulnerable?

Accepted Answer

Are other plugins from this developer vulnerable?

This specific vulnerability only impacts Booster for WooCommerce. However, in general it is wise to keep all your plugins updated, especially if they have not been patched against recent core vulnerabilities likelog4j or Prototype Pollution attacks.

Question 10

How can I better stay on top of WordPress security?

Accepted Answer

How can I better stay on top of WordPress security?

Some best practices include enabling automatic background updates, regularly checking plugins for new versions, using a security scanner like Wordfence, monitoring file changes, establishing security protocols like backups and strong passwords, and signing up for update notifications from developers.

cve-2023-5638

WordPress Plugin Vulnerability Report – Booster for WooCommerce – Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode – CVE-2023-5638

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