CVE-2026-124409 in CURCY Plugin
Summary
by MITRE • 11/13/2026
Missing Authorization vulnerability in VillaTheme CURCY woo-multi-currency allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects CURCY: from n/a through 2.2.21.
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Analysis
by VulDB Data Team • 11/13/2026
The identified security flaw resides within the VillaTheme CURCY plugin for WordPress, specifically affecting versions ranging from non-existent initial releases up to version 2.2.21. This vulnerability is classified as a missing authorization issue, which fundamentally represents an improper access control mechanism where the application fails to verify whether the authenticated user has sufficient privileges to perform specific actions or access certain resources. In the context of web applications and content management systems like WordPress, such flaws are particularly critical because they can allow attackers who have obtained valid credentials for low-privilege accounts, such as subscribers or contributors, to escalate their permissions or manipulate sensitive data that should be restricted to administrators or higher-level roles.
Technically, this vulnerability stems from a failure in the server-side logic to enforce adequate security levels during request processing. When a user interacts with specific endpoints or functions within the CURCY plugin designed for currency management and configuration, the application does not adequately check if the current session possesses the necessary administrative rights before executing the requested operation. This oversight allows an attacker to craft malicious HTTP requests that bypass intended access controls. By manipulating parameters related to currency settings, exchange rates, or display configurations, a low-privileged user can effectively alter system behavior in ways reserved for site administrators. The root cause is typically attributed to insufficient input validation and lack of role-based access control checks at critical decision points within the plugin codebase.
The operational impact of this vulnerability is significant, as it compromises the integrity and confidentiality of the WordPress installation. An attacker exploiting this flaw can modify currency settings, potentially disrupting e-commerce operations if the site relies on accurate pricing displays for multiple currencies. More critically, depending on how the affected functions interact with other parts of the system or database, this could lead to broader security implications such as unauthorized data modification or even further privilege escalation vectors if combined with other vulnerabilities. The ability to change configuration settings without proper authorization undermines the trust model of the application and can result in financial loss for e-commerce businesses that depend on accurate currency conversion logic.
From a classification perspective, this issue aligns closely with CWE-269, which denotes Improper Privilege Management, specifically highlighting cases where an actor is able to perform actions beyond their assigned privileges. It also relates to CWE-862, Missing Authorization, as the core failure is the absence of a check ensuring that the user has permission for the action being performed. In terms of offensive security frameworks like MITRE ATT&CK, this vulnerability facilitates techniques associated with Privilege Escalation and potentially Defense Evasion if used to alter logs or configurations to hide malicious activity. The exploitation path typically involves authenticated access followed by crafted requests targeting specific administrative endpoints exposed by the plugin without adequate verification.
To mitigate this risk, immediate action is required for all WordPress sites running CURCY versions up to 2.2.21. Users should update the plugin to a patched version where the vendor has implemented proper authorization checks and role validation mechanisms. Until an official patch is available or applied, administrators can employ temporary workarounds such as restricting access to the wp-admin directory using IP whitelisting if feasible, although this does not fully address API-level vulnerabilities. Additionally, implementing Web Application Firewalls with rules that detect anomalous behavior patterns associated with privilege escalation attempts can provide a layer of defense. Regular security audits and penetration testing should be conducted on custom plugins to ensure adherence to secure coding standards and proper implementation of access control policies as defined by industry best practices.