CVE-2026-94124 in WP EasyCart Plugin
Summary
by MITRE • 09/23/2026
Contributor SQL Injection in WP EasyCart <= 5.9.4 versions.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified as Contributor SQL Injection in WP EasyCart prior to version 5.9.4 represents a critical security flaw within the WordPress e-commerce plugin ecosystem, specifically targeting user roles with contributor privileges or lower. This weakness stems from insufficient input validation and sanitization mechanisms applied to parameters passed through HTTP requests that interact with the database backend. In typical web application architectures, SQL injection occurs when untrusted data is concatenated directly into SQL queries without proper escaping or parameterized query usage, allowing an attacker to manipulate the intended logic of the database command. For WP EasyCart, this flaw likely exists in endpoints responsible for managing product details, order statuses, or user-specific cart operations where contributor-level inputs are processed by the application's internal functions before being executed against the MySQL database.
From a technical perspective, the exploitation vector relies on the attacker injecting malicious SQL syntax into input fields that are subsequently used in SELECT, INSERT, UPDATE, or DELETE statements. Because WordPress plugins often rely heavily on global objects such as $wpdb for database interactions, failure to utilize prepared statements with bound parameters leaves these queries vulnerable. An authenticated user with contributor access can craft specific HTTP requests containing specially crafted payloads designed to alter the structure of SQL commands. This could involve appending logical operators like OR 1=1 or utilizing UNION SELECT clauses to extract data from other tables within the same database schema, such as wp_users which contains administrator credentials and session tokens. The vulnerability is particularly dangerous because it does not require administrative privileges for initial exploitation, lowering the barrier to entry for attackers who may have obtained low-level access through phishing, credential stuffing, or compromised contributor accounts.
The operational impact of this SQL injection vulnerability extends beyond simple data exfiltration. Successful exploitation can lead to a complete compromise of the WordPress installation and its underlying database infrastructure. Attackers can retrieve sensitive information including customer payment details if stored insecurely, administrator usernames and password hashes which may be cracked offline, and other proprietary business data housed within the e-commerce platform. Furthermore, advanced SQL injection techniques allow for blind extraction or time-based attacks that do not require visible output on the web page, making detection by standard intrusion prevention systems more difficult. In severe cases, if the database user has elevated file system privileges, an attacker might write malicious PHP shells to disk via INTO OUTFILE statements, leading to remote code execution and full server compromise. This transforms a relatively low-privilege vulnerability into a critical threat vector for the entire hosting environment.
This flaw aligns with CWE-89 Improper Neutralization of Special Elements used in an SQL Command, which is consistently ranked among the most dangerous web application vulnerabilities by industry standards such as OWASP Top 10 and MITRE ATT&CK technique T1190 Exploit Public-Facing Application. The attack pattern corresponds to data exfiltration via injection techniques where the attacker manipulates backend database operations to access unauthorized information resources. Mitigation strategies must prioritize immediate upgrading of WP EasyCart to version 5.9.4 or later, as this release addresses the specific input validation gaps responsible for the flaw. For organizations unable to patch immediately due to compatibility constraints, implementing a Web Application Firewall with robust SQL injection detection rules can provide temporary protection by blocking malicious payloads before they reach the application logic. Additionally, enforcing strict principle of least privilege on database accounts used by WordPress ensures that even if an injection succeeds, the potential damage is contained within limited permissions. Regular security audits and code reviews focusing on $wpdb usage patterns are essential to prevent similar vulnerabilities in custom plugins or themes integrated with the e-commerce platform.