CVE-2026-73346 in WooCommerce Plugin
Summary
by MITRE • 08/13/2026
Administrator SQL Injection in MailChimp For WooCommerce < 6.2 versions.
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Analysis
by VulDB Data Team • 08/13/2026
The vulnerability identified as administrator sql injection in MailChimp For WooCommerce plugin affects versions prior to 6.2, representing a critical security flaw that allows authenticated attackers with administrator privileges to execute arbitrary sql commands against the underlying database. This issue stems from insufficient input validation and improper output escaping within the plugin's administrative interfaces where user-supplied data is directly incorporated into sql query constructions without adequate sanitization measures.
The technical exploitation of this vulnerability occurs through carefully crafted input parameters that bypass standard validation checks, enabling an attacker to inject malicious sql payloads into database queries. The flaw typically manifests when administrator users interact with specific administrative functions within the plugin's dashboard where sql queries are constructed dynamically based on user inputs. This injection point allows for complete database compromise including data extraction, modification, deletion, and potential privilege escalation within the affected wordpress installation.
From an operational impact perspective, this vulnerability poses significant risk to ecommerce environments that rely on MailChimp For WooCommerce integration, as it enables attackers to gain unauthorized access to customer data, order information, and potentially sensitive business intelligence. The exploitation requires only administrative-level access which may be achieved through credential compromise or social engineering attacks targeting privileged users. Once exploited, the attacker can manipulate subscriber lists, modify product information, access confidential customer records, and potentially use the compromised system as a foothold for further lateral movement within the network infrastructure.
The vulnerability aligns with common weakness enumeration cwes 89 and 20, which specifically address sql injection flaws and improper input validation respectively. From an attacker tactics perspective, this flaw maps to multiple att&ck techniques including privilege escalation through credential access and execution of malicious code within target systems. The attack vector typically involves manipulation of administrative interfaces where the plugin processes user inputs directly into database operations without proper sanitization.
Mitigation strategies should prioritize immediate deployment of version 6.2 or higher which contains patches addressing the sql injection vulnerability through proper input validation and parameterized query implementations. Organizations should also implement additional security controls including regular security auditing of installed plugins, monitoring for unusual administrative activities, and enforcement of principle of least privilege access controls. Network segmentation and web application firewalls can provide additional layers of defense, while comprehensive logging and alerting mechanisms should be implemented to detect potential exploitation attempts. Regular vulnerability scanning and penetration testing should be conducted to identify similar issues in other third-party components within the wordpress ecosystem.
The broader implications extend beyond immediate exploitation as this vulnerability demonstrates the critical importance of maintaining up-to-date security patches for all administrative plugins within wordpress environments. Organizations must establish robust patch management processes specifically targeting ecommerce and marketing automation tools that handle sensitive customer data, as these systems often represent high-value targets for cybercriminals seeking persistent access to business-critical information infrastructure.