You can only upload certain types of non-executable files. We said that in a WordPress website there are fields to upload files. What Are The Different Types of File Upload Vulnerability?Įarlier we explained how file upload vulnerability works. So before we discuss protective measures, we’ll take a deeper look into the basic file upload vulnerability in the next section. However, it’s important to understand how this vulnerability works. Luckily, there are measures you can take to protect your website against such a vulnerability. In the sections below, you’ll learn how to protect your website against such vulnerability. This is what is known as a file upload vulnerability. You can check how to prevent SQL injection attacks. These files can run commands wreaking havoc on your website. Hackers can take advantage of this and upload executable codes in file formats such as PHP file, JavaScript, and exe. But if it malfunctions, it can start accepting unrestricted file uploads. Generally, the upload fields on a website accept only non-executable files. The formats or file types allow you to only view these files.Īs we said, these formats are non-executable which means even if there’s malicious code in them, the code cannot execute any command on your site. And for videos, it includes mp3 and mp4 files extension. For documents, the formats include PDF and Docx. Generally, the documents or some file being uploaded by file uploaders are in a format that cannot execute any commands without showing any error messages.įor images, the accepted formats include png and jpeg. When a file is uploaded to your site, WordPress check the file and store it in a specific folder called the Uploads directory. A banking website would allow you to upload supporting documentation such as identity, address, and income proof. For instance, a job portal would allow a user to upload a resume and certificates. Many WordPress websites give visitors the option to upload files for various purposes. You can also learn how hackers hack WordPress.ĥ In Conclusion What is a File Upload Vulnerability? In this article, we’ll explain what a file upload vulnerability is and show you the most effective ways to protect your site against it. Further, your web servers provider will suspend your account.īut don’t worry, you can prevent all this from happening by taking the right steps to fix and prevent file upload vulnerabilities on your site. When Google detects the hack, they will blacklist your website immediately to prevent Google users from accessing it. Moreover, things can snowball into much bigger security issues. You can check the top WordPress vulnerabilities here. They can cause severe damage to your site by defacing your pages, deleting files, stealing data, and even sending spam emails to your customers. If a hacker finds this vulnerability on your site, they can hijack your site and take full control. We wish we could tell you that there’s nothing to be worried about but the truth is, a file upload vulnerability is a serious issue. Do you suspect that your website has a file upload vulnerability? Are you worried that hackers will exploit it to hack your site?
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