WordPress is one of the most popular platforms for creating and hosting websites, but it also comes with some risks. One of them is the possibility of installing a plugin that contains a vulnerability or malware that can compromise your site and redirect your visitors to unwanted or harmful pages.
This happened to over 6,700 WordPress sites that used a Popup Builder plugin with a flaw that allowed hackers to inject malicious code into their web pages. The code would then launch popups that would send the visitors to fake support pages or scam websites.
This is not a new attack but a part of a long-running campaign called Balada Injector that has affected over 1 million WordPress sites since 2017. The hackers exploit various vulnerabilities in WordPress plugins to gain access to the sites and insert their backdoors.
So, how can you prevent this from happening to your WordPress site? Here are some tips:
- Keep your plugins updated: The Popup Builder plugin has already released a patched version that fixes the vulnerability. You should continually update your plugins to the latest version as soon as possible to avoid being exposed to known flaws.
- Use reputable plugins: Not all plugins are created equal. Some may have poor quality, hidden features, or malicious intentions. You should only use plugins with good ratings, reviews, and support from the WordPress community. You can also check the plugin's source code if you have the skills and time.
- Monitor your site's integrity: Even if you use trusted plugins, you may still be vulnerable to unknown or zero-day attacks. You should regularly check your site's files and code for any changes or anomalies that could indicate a compromise. You can use an integrity monitoring solution to alert you of any suspicious activity on your site.
- Minimize your plugin usage: The more plugins you use, the more potential entry points you create for hackers. You should only use the plugins you need and remove the ones you don't. You can also look for alternatives that provide the same functionality with less risk.
- Hold Managed Services accountable: If your website is hosted and managed by a third-party hosting services provider or you outsource your web development, hold your partners accountable to monitor and patch vulnerable software and plugins regularly.
Following these steps can reduce the chances of falling victim to the Balada Injector campaign or any other malicious plugin attack. Remember, your WordPress site is your online presence and reputation, so you should protect it as best as you can.
#ALTACyber
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Genady Vishnevetsky
Chief Info Security Officer
Stewart Title Guaranty Company
Houston TX
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