Unfortunately, WordPress vulnerabilities exist. WordPress vulnerabilities can exist in your plugins, your themes, and even WordPress core. And since WordPress now powers nearly 40% of all websites, the task of understanding vulnerabilities is even more important. Simply put: you have to vigilant about your website’s security.
If you aren’t a WordPress security expert, understanding all the various WordPress vulnerabilities can be daunting. It may also be overwhelming to try to understand the different levels of severity of a vulnerability, along with the risks of the WordPress vulnerability.
This guide will define the 21 most common WordPress vulnerabilities, cover how to score a WordPress vulnerability’s severity, give examples of how a hacker can exploit the vulnerability, and show how these vulnerabilities can be prevented. Let’s dive in.
WordPress Vulnerabilities Explained
What is a WordPress Vulnerability?
A WordPress vulnerability is a weakness or flaw in a theme, plugin, or WordPress core that can be exploited by a hacker. In other words, WordPress vulnerabilities create a point of entry that a hacker can use to pull off malicious activity.
Keep in mind that website hacking is almost all automated. Because of this, hackers can easily break into a large number of websites in virtually no time at all. Hackers use special tools that scan the internet, looking for known vulnerabilities.
Hackers like easy targets, and having a website that is running software with known vulnerabilities is like handing a hacker the step by step instructions to break into your WordPress website, server, computer, or any other internet-connected device.
Our monthly WordPress vulnerability roundup reports cover all of the publicly disclosed WordPress core, WordPress plugin, and theme vulnerabilities. In these roundups, we share the name of the vulnerable plugin or theme, the affected versions, and the vulnerability type.
What is Zero-Day Vulnerability?
A zero-day vulnerability is a vulnerability that has been publicly disclosed before the developer released a patch for the vulnerability.
When it comes to WordPress vulnerabilities, it’s important to understand the definition of a zero-day vulnerability. Because the vulnerability was disclosed to the public, the developer has zero-days to patch the vulnerability. And this can have big implications for your plugins and themes.
Typically, a security researcher will discover a vulnerability and privately disclose the vulnerability to the company’s developers that own the software. The security researcher and the developer agree that the full details will be published once a patch has been made available. There may be a slight delay in disclosing the vulnerability after the patch is released to give more people time to update for major security vulnerabilities.
However, if a developer doesn’t respond
This article was written by Michael Moore and originally published on WordPress News and Updates from iThemes – iThemes.