CVE-2025-9112 in Doccure Plugin
Summary
by MITRE • 09/08/2025
The Doccure theme for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'doccure_temp_file_uploader' function in all versions up to, and including, 1.4.8. This makes it possible for authenticated attackers, with subscriber-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.
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Analysis
by VulDB Data Team • 09/09/2025
The CVE-2025-9112 vulnerability affects the Doccure WordPress theme, presenting a critical security flaw that enables authenticated attackers to upload arbitrary files to vulnerable servers. This vulnerability exists within the 'doccure_temp_file_uploader' function, which fails to properly validate file types during the upload process. The flaw impacts all versions of the theme up to and including version 1.4.8, making it a widespread concern for WordPress site administrators who have not updated their installations. The vulnerability's severity is amplified by the fact that it requires only subscriber-level permissions or higher, meaning that attackers with relatively low access privileges can exploit this weakness to compromise affected systems. This represents a significant escalation of privilege vulnerability that undermines the fundamental security assumptions of WordPress user role management and file upload controls.
The technical implementation of this vulnerability stems from inadequate input validation within the file upload functionality. The 'doccure_temp_file_uploader' function does not properly sanitize or verify the file extensions, MIME types, or content of uploaded files, allowing attackers to bypass normal security restrictions. This type of flaw falls under CWE-434, which specifically addresses "Unrestricted Upload of File with Dangerous Type" and is classified as a path traversal or file manipulation vulnerability. The improper validation occurs at the application layer where the system should enforce strict file type restrictions based on allowed extensions, content signatures, and file attributes. Attackers can leverage this vulnerability by uploading malicious files such as php scripts, web shells, or other executable code that can be executed on the server, potentially leading to complete system compromise.
The operational impact of this vulnerability extends far beyond simple file upload capabilities, as it creates multiple attack vectors for malicious actors seeking to establish persistent access or execute arbitrary code on compromised WordPress installations. Once an attacker successfully uploads a malicious file, they can potentially execute commands on the server, gain access to sensitive data, modify website content, or use the compromised system as a launchpad for further attacks within the network. This vulnerability directly aligns with ATT&CK technique T1190, which describes "Exploit Public-Facing Application" and T1505.003, "Web Shell," as attackers can deploy web shells to maintain access and execute commands remotely. The vulnerability also represents a significant risk to data integrity and confidentiality, as it allows attackers to modify or exfiltrate information from the compromised system without detection.
Organizations affected by CVE-2025-9112 should immediately implement multiple layers of mitigation strategies to protect their WordPress installations. The primary recommendation involves updating the Doccure theme to the latest available version, which should contain patches addressing the file validation issues. Additionally, administrators should implement strict file upload restrictions by configuring WordPress to only allow safe file types such as images, documents, and other non-executable formats. Server-side validation should be enhanced with additional checks including MIME type verification, file content analysis, and proper file extension filtering. Network-level protections such as web application firewalls and intrusion detection systems can help monitor for suspicious upload activities and block malicious file transfers. Regular security audits and vulnerability assessments should be conducted to identify similar issues in other themes or plugins, as this vulnerability type often appears in poorly validated file upload mechanisms across various web applications. Implementation of principle of least privilege access controls and regular security updates for all WordPress components remains essential for maintaining overall system security posture.