CVE-2017-9418 in WP-Testimonials Plugin
Summary
by MITRE
SQL injection vulnerability in the WP-Testimonials plugin 3.4.1 for WordPress allows an authenticated user to execute arbitrary SQL commands via the testid parameter to wp-admin/admin.php.
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Analysis
by VulDB Data Team • 06/25/2024
The CVE-2017-9418 vulnerability represents a critical sql injection flaw within the WP-Testimonials plugin version 3.4.1 for WordPress systems. This vulnerability specifically affects the administrative backend functionality where the testid parameter in the wp-admin/admin.php endpoint fails to properly sanitize user input. The flaw arises from insufficient input validation and improper parameter handling within the plugin's codebase, creating an exploitable path for malicious actors who have gained authenticated access to the WordPress administration interface.
The technical implementation of this vulnerability stems from the plugin's failure to employ proper sql query preparation or parameterized statements when processing the testid parameter. When an authenticated user submits malicious input through this parameter, the system directly incorporates the user-supplied data into sql query construction without adequate sanitization or escaping mechanisms. This design flaw aligns with common weakness enumeration CWE-89, which categorizes sql injection vulnerabilities as critical security defects in application code. The vulnerability operates at the application layer where user input transitions directly into database operations, creating a direct pathway for unauthorized data manipulation and potential system compromise.
The operational impact of CVE-2017-9418 extends beyond simple data theft, as it enables authenticated attackers to execute arbitrary sql commands against the underlying database. This capability allows malicious users to extract sensitive information, modify or delete testimonials and related data, potentially access other system tables, and in severe cases gain deeper system access. The vulnerability is particularly dangerous because it requires only authenticated access, which can be achieved through credential compromise or social engineering attacks that target administrative accounts. According to ATT&CK framework technique T1071.004, this vulnerability facilitates application layer protocol manipulation and can be leveraged for privilege escalation within the wordpress environment.
Mitigation strategies for CVE-2017-9418 should prioritize immediate plugin updates to version 3.4.2 or later, which contains the necessary sql injection fixes and input validation improvements. System administrators should implement comprehensive access controls and multi-factor authentication to reduce the risk of unauthorized administrative access. Additionally, regular security auditing of wordpress plugins and themes should be conducted to identify similar vulnerabilities. Network monitoring solutions should be configured to detect unusual sql query patterns that might indicate exploitation attempts. The vulnerability also underscores the importance of input validation and parameterized queries as fundamental security practices, aligning with security standards such as OWASP Top Ten A03:2021 and NIST SP 800-161 guidelines for secure coding practices. Organizations should also maintain updated security patches and consider implementing web application firewalls to provide additional defense-in-depth measures against similar sql injection attacks.