CVE-2026-119466 in APIExperts Square for WooCommerce Plugin
Summary
by MITRE • 10/30/2026
Cross-Site Request Forgery (CSRF) vulnerability in WPExperts APIExperts Square for WooCommerce woosquare allows Cross Site Request Forgery.This issue affects APIExperts Square for WooCommerce: from n/a through 4.7.5.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/30/2026
The identified security flaw represents a classic Cross-Site Request Forgery vulnerability within the APIExperts Square for WooCommerce plugin, specifically affecting versions ranging from initial releases up to version 4.7.5. This type of attack exploits the trust that a web application has in the user's browser by tricking an authenticated user into executing unwanted actions on behalf of their current session. In this specific context, the vulnerability stems from insufficient validation or verification mechanisms regarding whether the request was intentionally initiated by the user. When a site fails to implement anti-CSRF tokens or verify the Origin and Referer headers adequately, it becomes susceptible to malicious actors crafting deceptive requests that appear legitimate to the server because they carry valid authentication cookies or session identifiers belonging to an unsuspecting victim.
From a technical perspective, the operational impact of this vulnerability is significant for any e-commerce environment relying on WooCommerce integrated with Square payment processing services. An attacker can construct a specially crafted URL or HTML form containing malicious JavaScript that forces a logged-in administrator or merchant to perform critical administrative actions without their knowledge or consent. These unintended actions could include modifying store settings, changing API keys associated with the Square integration, altering product configurations, or even initiating financial transactions if such endpoints are exposed and lack proper authorization checks. The severity is amplified by the fact that these operations often involve sensitive business logic and potentially financial data, making successful exploitation a direct threat to both operational integrity and revenue streams.
This vulnerability aligns closely with CWE-352, which defines Cross-Site Request Forgery as a weakness where an application uses user-supplied input without sufficient validation or verification of intent. Furthermore, in the context of the MITRE ATT&CK framework, this behavior maps to T1076, known as Remote Command Execution through Browser Hacks, although more specifically it falls under techniques involving social engineering and browser-based attacks that leverage trusted sessions. The lack of robust request origin validation allows attackers to bypass standard security controls by leveraging the victim's active session state against them. This is particularly dangerous in administrative interfaces where privilege escalation or configuration changes can have cascading effects on system stability and data confidentiality.
To mitigate this risk, immediate action should be taken to upgrade the APIExperts Square for WooCommerce plugin to a version later than 4.7.5, assuming the vendor has released patches that address these CSRF weaknesses. If upgrading is not immediately feasible, administrators must implement compensating controls such as ensuring all state-changing requests require unique anti-CSRF tokens embedded in forms and validated on submission. Additionally, enforcing strict SameSite cookie attributes can help prevent browsers from sending session cookies with cross-site requests, thereby reducing the attack surface significantly. Regular security audits and penetration testing focused on form submissions and API endpoints are also recommended to ensure that no other similar vulnerabilities exist within the plugin's codebase or its integration points with WooCommerce core functionality.