CVE-2024-8271 in FOX Plugin
Summary
by MITRE • 09/14/2024
The The FOX – Currency Switcher Professional for WooCommerce plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.4.2.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode in the 'woocs_get_custom_price_html' function. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/28/2024
The vulnerability identified as CVE-2024-8271 affects the FOX – Currency Switcher Professional for WooCommerce plugin, a widely used WordPress extension that enables currency switching functionality on e-commerce sites. This plugin operates within the WordPress ecosystem and integrates with WooCommerce to provide multi-currency support for online stores. The vulnerability exists in versions up to and including 1.4.2.1, representing a critical security flaw that exposes WordPress installations to potential exploitation by unauthenticated attackers. The issue stems from improper input validation within the plugin's core functionality, specifically within the 'woocs_get_custom_price_html' function that processes currency conversion displays.
The technical flaw manifests in the 'woocs_get_custom_price_html' function where the plugin fails to properly validate user-supplied input before executing the do_shortcode function. This function is responsible for generating custom price HTML output when currency switching occurs on product pages or cart displays. When an attacker crafts a malicious request containing specially formatted shortcode parameters, the plugin processes these inputs without adequate sanitization or validation checks. The do_shortcode function in WordPress executes any valid shortcode found within the input, allowing attackers to inject arbitrary shortcode content that can execute malicious code or perform unauthorized actions within the WordPress environment. This represents a classic command injection vulnerability where user input directly influences the execution context of WordPress shortcodes.
The operational impact of this vulnerability is severe and multifaceted, as it allows unauthenticated attackers to execute arbitrary shortcodes without requiring any authentication credentials or privileged access. Attackers can leverage this weakness to perform various malicious activities including but not limited to executing arbitrary PHP code, injecting malicious content into web pages, accessing sensitive data, or even establishing persistent backdoors within the WordPress installation. The vulnerability affects all users of the affected plugin versions regardless of their authentication status, making it particularly dangerous in public-facing e-commerce environments where users may unknowingly trigger the malicious shortcode execution. This could lead to complete compromise of the WordPress site, data breaches, and potential infiltration of the entire hosting environment.
Security mitigations for this vulnerability should begin with immediate patching of the affected plugin to version 1.4.2.2 or later, which contains the necessary validation fixes. System administrators should also implement additional defensive measures including monitoring for suspicious shortcode usage patterns, implementing web application firewalls with rules to block known malicious shortcode patterns, and conducting thorough security audits of all active plugins. The vulnerability aligns with CWE-77 and CWE-94 categories, representing command injection and code execution flaws respectively, and falls under ATT&CK technique T1505.003 for "Obfuscated Files or Information" and T1190 for "Exploit Public-Facing Application" within the MITRE ATT&CK framework. Organizations should also consider implementing least privilege principles for plugin installations and regularly updating all WordPress components to maintain security hygiene and prevent similar vulnerabilities from being exploited.