CVE-2023-4500 in Order Tracking Pro Plugin
Summary
by MITRE • 08/31/2023
The Order Tracking Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the order status parameter in versions up to, and including, 3.3.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers (admin or higher) to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This only affects multi-site installations and installations where unfiltered_html has been disabled.
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Analysis
by VulDB Data Team • 04/10/2026
The vulnerability identified as CVE-2023-4500 affects the Order Tracking Pro plugin for WordPress, specifically targeting versions up to and including 3.3.6. This represents a critical security flaw that exploits stored cross-site scripting vulnerabilities within the plugin's handling of order status parameters. The vulnerability stems from inadequate input sanitization and insufficient output escaping mechanisms that fail to properly validate and sanitize user-supplied data before it is processed and displayed within the WordPress administration interface. The flaw specifically manifests when authenticated attackers with admin-level privileges attempt to inject malicious scripts into the order tracking system, creating a persistent threat that can affect all users who interact with the compromised plugin functionality.
The technical implementation of this vulnerability occurs within the plugin's parameter handling mechanisms where the order status parameter lacks proper validation and sanitization. When an authenticated attacker with administrative privileges submits malicious input through the order status field, the system fails to properly escape or sanitize this data before storing it in the database. This stored malicious content then executes whenever the affected page is loaded and displayed to other users, particularly those with sufficient privileges to view order tracking information. The vulnerability's exploitation requires the attacker to have administrative access or higher privileges within the WordPress installation, but once achieved, the impact extends to all users who may view the compromised order tracking data.
The operational impact of CVE-2023-4500 is significant and multifaceted within WordPress environments that utilize the affected plugin. The vulnerability creates a persistent threat vector that can be leveraged for various malicious activities including session hijacking, credential theft, and the execution of arbitrary commands on affected systems. The attack requires social engineering elements where users must be tricked into clicking on malicious links or visiting compromised pages, but the actual vulnerability allows for persistent script execution. This makes the attack more dangerous than typical XSS vulnerabilities because the malicious code remains active until manually removed from the database, potentially affecting multiple users over extended periods. The vulnerability's impact is particularly severe in multi-site installations where the compromised plugin can affect multiple WordPress installations within a single network.
This vulnerability aligns with CWE-79, which specifically addresses Cross-Site Scripting flaws in software applications, and follows the ATT&CK framework's technique T1059.001 for command and scripting interpreter, as the stored XSS allows for arbitrary code execution within the browser context of affected users. The vulnerability's classification as a stored XSS issue means that malicious scripts persist in the database and execute automatically when users access the affected pages, rather than requiring a one-time user interaction with a malicious link. The requirement for administrative privileges to exploit this vulnerability means that attackers must first compromise an administrative account, but once achieved, they can create persistent threats that affect all users with access to the order tracking functionality.
The exploitation of this vulnerability is particularly concerning in multi-site WordPress installations where the compromised plugin can affect multiple individual sites within a single network, potentially creating a widespread security impact. The vulnerability's specific condition requiring installations where unfiltered_html has been disabled means that the risk is elevated in environments that have implemented additional security measures, but these same security measures also make the vulnerability more dangerous when it is successfully exploited. Organizations should consider implementing immediate mitigation strategies including plugin updates, input validation improvements, and enhanced monitoring of administrative activities to detect potential exploitation attempts.
Recommended mitigations for CVE-2023-4500 include immediate patching of the Order Tracking Pro plugin to versions that address the stored XSS vulnerability through proper input sanitization and output escaping mechanisms. Administrators should also implement additional security measures such as restricting administrative privileges to only essential personnel, implementing robust monitoring of administrative activities, and conducting regular security audits of installed plugins. The vulnerability's impact can be further reduced by implementing proper content security policies that limit script execution within the WordPress administration interface, and by ensuring that all users with administrative privileges undergo regular security training to recognize potential social engineering attacks that could lead to privilege escalation. Organizations should also consider implementing web application firewalls that can detect and block suspicious input patterns that may indicate attempts to exploit this vulnerability.