CVE-2025-39375 in Easy Child Theme Creator Plugin
Summary
by MITRE • 05/19/2025
Cross-Site Request Forgery (CSRF) vulnerability in Ashok G Easy Child Theme Creator allows Cross Site Request Forgery.This issue affects Easy Child Theme Creator: from n/a through 1.3.1.
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Analysis
by VulDB Data Team • 05/24/2026
Cross-site request forgery vulnerabilities represent a critical class of web application security flaws that enable attackers to perform unauthorized actions on behalf of authenticated users. The Ashok G Easy Child Theme Creator plugin presents a CSRF vulnerability that allows malicious actors to exploit the authentication context of legitimate users within WordPress environments. This vulnerability specifically impacts versions ranging from the initial release through 1.3.1, creating a window of opportunity for attackers to manipulate the plugin's functionality without proper authorization. The flaw exists in the plugin's handling of requests that modify theme configurations or perform administrative actions, where adequate anti-forgery tokens or validation mechanisms are absent or insufficient. According to the Common Weakness Enumeration catalog, this vulnerability maps to CWE-352 which classifies CSRF as a weakness that permits unauthorized commands to be executed in the context of a victim user's session.
The technical implementation of this CSRF vulnerability stems from the plugin's failure to validate the origin or authenticity of requests submitted through web forms or API endpoints. When a user with administrative privileges interacts with the plugin's interface, their browser automatically includes authentication cookies in requests, but the plugin does not verify that these requests originate from legitimate sources within the same application. This absence of proper request validation creates an opportunity for attackers to craft malicious requests that, when executed by an authenticated user, perform unintended operations such as theme modifications, configuration changes, or potentially arbitrary code execution depending on the plugin's implementation details. The vulnerability is particularly concerning in WordPress environments where administrators often have elevated privileges and the plugin's functionality may interact with core system components or user data.
The operational impact of this CSRF vulnerability extends beyond simple unauthorized modifications to potentially compromise entire WordPress installations. Attackers could leverage this weakness to install malicious themes, modify existing themes to include backdoors, or alter plugin configurations that could lead to further exploitation. The attack vector typically involves tricking a victim administrator into visiting a malicious website or clicking on a crafted link that automatically submits requests to the vulnerable plugin endpoint. This approach relies on the administrator's existing authenticated session with the WordPress site, making the attack particularly effective since no credentials are required to exploit the vulnerability. The consequences can range from data manipulation and service disruption to complete system compromise, especially when combined with other vulnerabilities or when the plugin's functionality provides access to sensitive system resources. Security frameworks such as the MITRE ATT&CK matrix categorize this type of vulnerability under the technique of "T1213: Data from Information Repositories" when it enables unauthorized access to system configurations or user data.
Mitigation strategies for this CSRF vulnerability must address both the immediate technical flaw and broader security posture of the affected WordPress installation. The most effective approach involves implementing robust anti-forgery token mechanisms that validate the authenticity of each request through unique, unpredictable tokens generated for each user session and embedded within all forms and API endpoints. The plugin developers should ensure that every state-changing operation requires proper validation of the request source, typically through the inclusion and verification of nonce values or similar cryptographic tokens. Additionally, implementing proper HTTP headers such as Content Security Policy directives can help prevent unauthorized script execution and reduce the attack surface. System administrators should also consider implementing rate limiting and monitoring mechanisms to detect unusual patterns of requests that might indicate CSRF attacks. Regular security updates and vulnerability assessments should be conducted to identify and remediate similar weaknesses across the entire WordPress ecosystem. The principle of least privilege should be enforced by ensuring that plugin functionality requires appropriate authorization levels and that all user interactions are properly authenticated and validated. Organizations should also implement security awareness training for administrators to recognize potential social engineering attacks that might leverage CSRF vulnerabilities.