CVE-2014-100003 in YourMembers
Summary
by MITRE
SQL injection vulnerability in includes/ym-download_functions.include.php in the Code Futures YourMembers plugin for WordPress allows remote attackers to execute arbitrary SQL commands via the ym_download_id parameter to the default URI.
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Analysis
by VulDB Data Team • 07/04/2025
This vulnerability resides within the Code Futures YourMembers plugin for WordPress, specifically in the includes/ym-download-functions.include.php file where a SQL injection flaw exists in the ym_download_id parameter handling. The issue allows remote attackers to inject malicious SQL commands through the default URI endpoint, effectively bypassing normal input validation mechanisms. The vulnerability stems from improper sanitization of user-supplied input before incorporating it into database queries, creating an exploitable path for attackers to manipulate the underlying database operations.
The technical implementation of this flaw involves the plugin's failure to properly escape or validate the ym_download_id parameter, which is directly used in SQL query construction without adequate sanitization. When an attacker submits a malicious value through this parameter, the database query execution becomes vulnerable to manipulation, potentially allowing full database access, data extraction, or even database modification. This type of vulnerability falls under CWE-89, which specifically addresses SQL injection flaws in software applications. The attack vector is particularly dangerous because it operates through a standard URI endpoint, making it easily accessible to remote threat actors without requiring special privileges or complex exploitation techniques.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can lead to complete system compromise. Attackers can leverage this weakness to extract sensitive user information, modify membership data, or even escalate privileges within the WordPress environment. The vulnerability affects all versions of the YourMembers plugin that incorporate the flawed include file, potentially impacting numerous WordPress installations across different environments. This represents a critical security risk for organizations relying on WordPress for membership management, as the compromise of the plugin directly translates to potential compromise of the entire WordPress site and its user database.
Mitigation strategies should prioritize immediate patching of the affected plugin to the latest secure version that addresses the SQL injection vulnerability. System administrators must also implement input validation at multiple layers, including web application firewalls and database-level query sanitization. The principle of least privilege should be enforced by ensuring database connections used by the plugin operate with minimal required permissions, limiting the potential damage from successful exploitation. Additionally, monitoring for unusual database access patterns and implementing proper logging mechanisms can help detect exploitation attempts. This vulnerability aligns with ATT&CK technique T1190, which covers exploitation of remote services through SQL injection attacks, emphasizing the importance of robust input validation and proper database access controls in preventing such incidents. Organizations should also consider implementing automated vulnerability scanning to identify similar issues in other WordPress plugins and themes that may be susceptible to similar injection flaws.