CVE-2016-0769 in eShop Plugin
Summary
by MITRE
Multiple SQL injection vulnerabilities in eshop-orders.php in the eShop plugin 6.3.14 for WordPress allow (1) remote administrators to execute arbitrary SQL commands via the delid parameter or remote authenticated users to execute arbitrary SQL commands via the (2) view, (3) mark, or (4) change parameter.
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Analysis
by VulDB Data Team • 05/14/2026
The CVE-2016-0769 vulnerability represents a critical SQL injection flaw within the eShop plugin version 6.3.14 for WordPress, exposing multiple attack vectors that enable unauthorized command execution. This vulnerability resides in the eshop-orders.php script and demonstrates a classic insufficient input validation issue that has been classified under CWE-89, which specifically addresses SQL injection vulnerabilities. The flaw allows threat actors to manipulate database queries through carefully crafted input parameters, potentially leading to complete system compromise and data exfiltration.
The technical implementation of this vulnerability occurs through four distinct parameter injection points within the eshop-orders.php file. The primary attack vector involves the delid parameter, which can be exploited by remote administrators to execute arbitrary SQL commands directly within the database context. Additionally, three secondary parameters - view, mark, and change - provide alternative pathways for authenticated users to perform similar malicious SQL injection attacks. These parameters are not properly sanitized or validated before being incorporated into database queries, creating multiple entry points for exploitation that can be leveraged by attackers with varying levels of access privileges.
The operational impact of CVE-2016-0769 extends beyond simple data theft, as successful exploitation can result in complete database compromise and potential lateral movement within affected systems. Attackers can leverage these vulnerabilities to extract sensitive customer information, modify transaction records, escalate privileges within the WordPress environment, or even establish persistent backdoors through database manipulation. The vulnerability's classification under ATT&CK technique T1071.004 for application layer protocol and T1213.002 for data from information repositories demonstrates its potential for both reconnaissance and data exfiltration activities. Organizations running vulnerable WordPress installations face significant risk of data breaches, regulatory compliance violations, and reputational damage when these vulnerabilities remain unpatched.
Mitigation strategies for CVE-2016-0769 should prioritize immediate patching of the eShop plugin to version 6.3.15 or later, which contains the necessary input validation fixes. Network-based protections including web application firewalls and intrusion detection systems should be configured to monitor for suspicious SQL injection patterns targeting the affected parameters. Input validation mechanisms should be implemented at multiple layers, with proper parameter sanitization and prepared statement usage to prevent query injection. Regular security audits and vulnerability assessments should be conducted to identify similar flaws in other WordPress plugins and themes, as this vulnerability represents a common pattern of insecure database query construction that affects numerous web applications. Organizations should also implement principle of least privilege access controls to limit the potential impact of successful exploitation, particularly for administrative accounts that could leverage the delid parameter for elevated operations.