CVE-2025-0818 in File Manager Pro Plugin
Summary
by MITRE • 08/13/2025
Several WordPress plugins using elFinder versions 2.1.64 and prior are vulnerable to Directory Traversal in various versions. This makes it possible for unauthenticated attackers to delete arbitrary files. Successful exploitation of this vulnerability requires a site owner to explicitly make an instance of the file manager available to users.
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Analysis
by VulDB Data Team • 08/13/2025
The vulnerability identified as CVE-2025-0818 represents a critical directory traversal flaw affecting WordPress plugins that incorporate elFinder file management components version 2.1.64 and earlier. This weakness resides within the file handling mechanisms of the elFinder library, which is widely utilized across various WordPress plugin ecosystems for providing web-based file management capabilities. The vulnerability specifically manifests when plugins expose the elFinder interface to unauthenticated users, creating an attack surface that malicious actors can exploit to manipulate file system operations. The flaw enables attackers to navigate beyond the intended directory boundaries and access files that should remain restricted, fundamentally compromising the integrity of the file system access controls. This issue demonstrates a classic path traversal vulnerability that allows unauthorized file operations, aligning with CWE-22 which categorizes improper limitation of a pathname to a restricted directory. The vulnerability is particularly concerning because it does not require authentication, meaning any user with access to the vulnerable plugin interface can potentially execute destructive file operations. The impact extends beyond simple file access to include arbitrary file deletion capabilities, which can result in complete data loss, system compromise, or the removal of critical application files that maintain the WordPress installation's functionality. This weakness directly violates security principles of least privilege and proper access control enforcement, creating opportunities for attackers to escalate their privileges and gain deeper system access.
The technical exploitation of CVE-2025-0818 requires a specific condition to be met - the site owner must explicitly enable the elFinder instance for user access. This conditional requirement means the vulnerability exists in the configuration and implementation of the plugin rather than being inherently exposed. The vulnerability operates through manipulation of file path parameters within the elFinder interface, where attackers can inject directory traversal sequences such as ../ or ..\ to navigate to restricted directories. This attack vector leverages the lack of proper input validation and sanitization in the file path handling mechanisms, allowing attackers to bypass normal file system access controls. The vulnerability's exploitation process typically involves crafting malicious requests that include traversal sequences in file operations, which are then processed by the vulnerable elFinder component without adequate validation. This type of vulnerability falls under the ATT&CK framework's privilege escalation techniques, specifically targeting the execution of unauthorized file operations. The attack chain requires the attacker to first identify the vulnerable plugin, then craft appropriate traversal payloads, and finally execute the destructive operations against the target system. The fact that authentication is not required makes this particularly dangerous as it eliminates one of the primary barriers to exploitation. The vulnerability's impact is amplified when considering that elFinder instances are often configured with broad access permissions, making it easier for attackers to discover and exploit the issue.
The operational consequences of successful exploitation of CVE-2025-0818 can be devastating for WordPress installations and their operators. Attackers can leverage this vulnerability to delete critical application files, including core WordPress files, plugin files, or theme files, potentially rendering the entire website inaccessible. The ability to perform arbitrary file deletions creates opportunities for complete site compromise, data destruction, and potential system takeover. Organizations may experience significant downtime, data loss, and reputational damage when such attacks occur, particularly in cases where backups are inadequate or nonexistent. The vulnerability also creates opportunities for attackers to remove security-related files or configurations that might prevent further exploitation or detection of the compromise. This type of file system manipulation can enable attackers to establish persistence mechanisms or remove forensic evidence of their activities. The impact extends beyond immediate file deletion to include potential cascading effects on application functionality, user data integrity, and overall system stability. The vulnerability's presence in multiple WordPress plugins means that the attack surface is broad, affecting various sites and organizations that may not be immediately aware of the specific plugins they are using. This widespread exposure creates a significant risk for organizations that do not maintain current inventories of their installed plugins or do not regularly update their software components. The vulnerability's exploitation can also lead to indirect consequences such as service disruption, compliance violations, and increased incident response costs.
Mitigation strategies for CVE-2025-0818 must address both immediate remediation and long-term security improvements. The primary recommendation is to update all affected WordPress plugins to versions that incorporate elFinder 2.1.65 or later, which contain the necessary patches to prevent directory traversal attacks. Organizations should conduct comprehensive inventory audits to identify all installations of affected plugins and prioritize their remediation. Access control measures should be implemented to restrict user access to file manager interfaces, ensuring that only authorized administrators can access these potentially dangerous functions. Configuration reviews should include verification of file manager permissions and the principle of least privilege enforcement. Network-level protections such as web application firewalls can provide additional layers of defense by monitoring and blocking suspicious file path traversal patterns. Regular security scanning and monitoring of WordPress installations should be implemented to detect similar vulnerabilities before they can be exploited. The implementation of automated patch management systems can help ensure that vulnerable components are updated promptly. Security awareness training for administrators should emphasize the importance of plugin management and the risks associated with exposing administrative interfaces to unauthenticated users. Organizations should also consider implementing regular backup strategies that include comprehensive file system snapshots to enable rapid recovery from successful exploitation attempts. The vulnerability underscores the importance of maintaining current software versions and following security best practices for web application management. Additionally, organizations should implement monitoring solutions that can detect unusual file system activities or unauthorized file deletion patterns that might indicate exploitation of similar vulnerabilities. The remediation process should include thorough testing of updated plugins to ensure that security patches do not introduce compatibility issues or break existing functionality.