The Fancy Product Designer plugin for WordPress has unpatched Critical Flaws

Radykal’s premium WordPress plugin, Fancy Product Designer, contains two critical vulnerabilities that remain unfixed in its current latest version.

With more than 20,000 sales, the plugin empowers users to customize product designs—such as clothing, mugs, and phone cases—on WooCommerce sites by changing colors, transforming text, or modifying the size.

While reviewing the plugin, Rafie Muhammad from Patchstack discovered two critical flaws on March 17, 2024:

• CVE-2024-51919 (CVSS score: 9.0): An insecure implementation of the file upload functions ‘save_remote_file’ and ‘fpd_admin_copy_file’ causes an unauthenticated arbitrary file upload vulnerability. These functions fail to validate or restrict file types, enabling attackers to upload malicious files via a remote URL and achieve remote code execution (RCE).
• CVE-2024-51818 (CVSS score: 9.3): Improper sanitization of user inputs due to the insufficient ‘strip_tags’ function leads to an unauthenticated SQL injection flaw. User-supplied input is directly included in database queries without proper validation, which can allow attackers to compromise databases, retrieve sensitive data, or modify and delete records.

Although Patchstack informed Radykal of these issues a day after discovering them, the vendor did not respond.

On January 6, Patchstack added the flaws to its database and published a blog post to alert users and raise awareness of the risks.

Despite releasing 20 updates, including version 6.4.3 two months ago, Radykal has not addressed these critical security issues, according to Muhammad.

Patchstack’s detailed writeup provides enough technical information for attackers to craft exploits and start targeting web stores that rely on the Fancy Product Designer plugin.

As a precaution, admins should prevent arbitrary file uploads by creating an allowed list of safe file extensions. Additionally, Patchstack advises sanitizing user inputs for database queries by using safe escaping and formatting techniques to guard against SQL injection.

The company has not provided a comment until the moment of this post.

Source: BleepingComputer, Bill Toulas