CVE-2026-6382
Summary
by MITRE • 07/06/2026
The FileOrganizer WordPress plugin before 1.1.9, Advanced File Manager WordPress plugin before 5.4.12, File Manager Pro WordPress plugin before 2.1.1, File Manager WordPress plugin before 8.0.4 do not properly escape a parameter before passing it to a shell command when processing image operations, allowing authenticated users to perform OS Command Injection. This requires the server to have the ImageMagick convert CLI available without either the PHP imagick or GD extensions.
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Analysis
by VulDB Data Team • 07/06/2026
The FileOrganizer WordPress plugin versions prior to 1.1.9 and related file management plugins including Advanced File Manager before 5.4.12, File Manager Pro before 2.1.1, and File Manager before 8.0.4 contain a critical security vulnerability that enables authenticated OS command injection attacks. This flaw exists in the image processing functionality where user-supplied parameters are not properly sanitized or escaped before being passed to shell commands. The vulnerability specifically targets installations where ImageMagick convert CLI utility is available but the PHP imagick or GD extensions are not present, creating an execution path that bypasses normal security controls. According to CWE-78, this represents a classic command injection flaw where untrusted data flows directly into operating system commands without proper input validation or sanitization.
The technical implementation of this vulnerability allows authenticated users to manipulate image processing operations by injecting malicious shell commands through parameters that control the ImageMagick convert utility. When administrators or users upload or process images through these plugins, the plugin fails to properly escape special characters or command delimiters in user-supplied parameters, enabling attackers to execute arbitrary system commands with the privileges of the web server process. This represents a significant escalation path since authenticated access is typically required, but once achieved, the attacker can leverage this to gain full control over the affected WordPress installation and potentially the underlying server. The vulnerability aligns with ATT&CK technique T1059.001 for command and script interpreters, specifically targeting shell command execution through web-based interfaces.
The operational impact of this vulnerability extends beyond simple privilege escalation to include complete system compromise potential. Attackers can leverage this flaw to execute commands such as downloading additional malware, establishing backdoors, accessing sensitive data, or performing lateral movement within the network. The requirement for ImageMagick convert CLI availability without PHP imagick or GD extensions creates a specific attack vector that security teams must monitor, particularly in environments where these alternative image processing libraries are disabled for security reasons. This vulnerability affects not just individual plugin installations but represents a broader concern about insecure parameter handling in WordPress plugin ecosystems. Organizations running affected versions should immediately implement patch management procedures and consider network segmentation to limit potential damage from successful exploitation attempts.
The exploitation of this vulnerability requires an authenticated user account, typically with permissions to upload or manage files within the WordPress environment. However, even limited user access can result in significant damage due to the privileged execution context of web servers. Security teams should conduct immediate assessments to identify all affected plugin installations and verify that ImageMagick convert CLI is properly configured without unnecessary exposure. The fix involves implementing proper input sanitization and parameter escaping before shell command execution, which aligns with secure coding practices recommended by both CWE guidelines and OWASP top ten security controls. Organizations should also consider implementing web application firewalls to detect and block suspicious command injection patterns while maintaining visibility into file operations that could indicate exploitation attempts.
Mitigation strategies include immediate patching of all affected plugin versions as provided by the respective developers, followed by comprehensive security audits of WordPress installations. System administrators should review server configurations to ensure that ImageMagick convert CLI is not unnecessarily exposed or accessible to web applications without proper input validation controls. Additional protective measures involve implementing strict file upload restrictions, monitoring for unauthorized command execution attempts, and ensuring that WordPress core and plugin updates are maintained on a regular schedule. The vulnerability demonstrates the importance of validating all user-supplied input at multiple layers of application architecture and highlights why proper parameter handling in shell command execution contexts remains a critical security concern in web application development practices.