CVE-2025-7366 in Rehub Plugin
Summary
by MITRE • 09/06/2025
The The REHub - Price Comparison, Multi Vendor Marketplace Wordpress Theme theme for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 19.9.7. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
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Analysis
by VulDB Data Team • 09/06/2025
The CVE-2025-7366 vulnerability affects the REHub - Price Comparison, Multi Vendor Marketplace WordPress theme, representing a critical security flaw that undermines the integrity of WordPress installations. This vulnerability stems from improper input validation within the theme's shortcode execution mechanism, creating a pathway for unauthorized code injection that could compromise entire websites. The issue impacts all versions up to and including 19.9.7, making it a widespread concern for WordPress users who have not updated to newer releases. The vulnerability specifically resides in how the theme handles user input when processing shortcode actions, failing to adequately sanitize or validate parameters before executing do_shortcode functions.
The technical exploitation of this vulnerability allows unauthenticated attackers to inject and execute arbitrary shortcodes on vulnerable WordPress sites without requiring any authentication credentials. This flaw creates a direct vector for remote code execution and can be leveraged to perform various malicious activities including data exfiltration, website defacement, or establishing backdoors. The vulnerability is categorized under CWE-79 - Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly sanitize user-controllable data before it is processed in web applications. The lack of proper validation before do_shortcode execution means that any shortcode parameters passed to the theme's processing functions can be executed with the privileges of the WordPress installation.
From an operational impact perspective, this vulnerability presents a severe risk to e-commerce websites and marketplace platforms that rely on the REHub theme for their operations. Attackers can exploit this flaw to inject malicious shortcodes that may redirect visitors to phishing sites, steal sensitive customer information, or manipulate product listings and pricing data. The vulnerability's unauthenticated nature means that any visitor to the compromised website can potentially trigger the malicious shortcode execution, making it particularly dangerous for public-facing marketplace platforms where user interaction is frequent. This could result in significant financial losses, reputational damage, and potential legal consequences for businesses operating on compromised platforms.
Organizations affected by this vulnerability should immediately update to the latest version of the REHub theme where the issue has been patched. The recommended mitigation strategy involves implementing proper input validation and sanitization measures before any shortcode execution occurs. Security teams should also consider deploying web application firewalls to monitor and block suspicious shortcode execution attempts. Additionally, regular security audits of WordPress themes and plugins should be conducted to identify similar validation flaws. According to ATT&CK framework, this vulnerability maps to T1059.008 - Command and Scripting Interpreter: PowerShell, as it allows for arbitrary code execution through shortcode manipulation. The remediation process should include comprehensive testing of the updated theme to ensure no regression issues are introduced while maintaining the functionality of legitimate shortcodes that are required for normal website operations.