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This is a monthly WordPress plugin vulnerability news article. It is a monthly digest of highlighted plugins that have vulnerabilities (there are other, less critical vulnerabilities on smaller plugins that unfortunately don’t always make it to the list). 

Updates are a crucial part of keeping WordPress sites secure. 98% of the hacking incidents happen to WordPress sites because of outdated plugins or themes.

This is why we are keeping a close eye on vulnerable plugins and newly discovered vulnerabilities to make sure the sites using the vulnerable plugins are protected.

All the vulnerabilities you find from this article have received a virtual patch to the WebARX firewall. It means that if you use the WebARX web application firewall, your site is safe from these vulnerabilities, but it’s always strongly advised to update or delete vulnerable plugins from your site.

Is your WordPress site secured? Take a look at how to secure your site here.

If you are a WordPress plugin developer read how to secure plugins from an attackers’ perspective.

Stored Cross-Site Scripting in Strong Testimonials Plugin

WordPress plugin vulnerability

Collect and publish testimonials or reviews.

Vulnerability: Stored cross-site scripting (XSS)
Vulnerable version: 2.40.1 and below
Number of sites affected: 90 000+

The stored XSS vulnerability found in the plugin can be exploited by attackers to perform malicious actions such as stealing the victim’s session cookies or login credentials, performing arbitrary actions on the victim’s behalf, logging their keystrokes and more.

First reported to the Strong Testimonials team on 23rd January 2020. A PoC with more details on the vulnerability will be released on February 15th, 2020.

Read more about the WordPress plugin vulnerability here.

WordPress Plugin Vulnerability Is Used To Target Your Site

WordPress sites are being hacked and infected every day. Some statistics say that about 30,000 websites are infected with some type of malware daily. Every public website is a resource available on the internet and therefore it’s a target. It’s important to understand that as soon as your website is available to the public, it immediately becomes a target. 

It can take just days from a disclosed plugin vulnerability to a full-scale attack campaign. Attacks in this nature are almost always automated. To be able to fight back, you have a small time window to take action. In such cases, web application firewalls have critical importance.

wordpress plugin vulnerability

Always keep your plugins updated so you don’t have any vulnerable plugins on your site. If possible, enable automatic updates. If you are using any of the mentioned plugins, you need to update it with the latest version as soon as possible to make sure a WordPress plugin vulnerability won’t affect your sites.

WebARX web application firewall gets virtual patches that are distributed automatically among the sites when vulnerabilities are discovered. Threat intelligence and prevention are our main focus and thus our firewall engine is updated on a daily basis.

Websites with WebARX firewall installed are protected from the security issues mentioned in this article. If you are not protecting your WordPress site against plugin vulnerabilities yet go and start for free here.

Frequently Asked Questions About Vulnerable Plugins

Is WordPress secure?

WordPress itself is secure, but what makes it vulnerable is the third party components or plugins that are used to improve its functionality. Statistics say that 98% of WordPress vulnerabilities are related to plugins.

How WordPress sites get hacked?

WordPress sites get hacked mostly by hackers targeting vulnerable software. It means that your site is not the target in most cases but the software (plugins, themes) that you use. It is mostly being done with bots and automated tools.

What to do when a website is hacked?

Find a trustworthy malware removal provider that has some reviews and testimonials online. Check the company background and if the provider is doing cleanups manually. Read why manual cleanups are important from WebARX blog.

How to choose a WordPress security plugin?

This will require some critical thinking as many of the providers offer 100% security. This can never be promised. When choosing, make sure the security provider offers a managed web application firewall with virtual patches and active support.

WordPress security