CVE-2025-12092 is a path traversal vulnerability categorized under CWE-22 found in the CYAN Backup plugin for WordPress, developed by gregross. The vulnerability arises from insufficient validation of file paths in the plugin's 'delete' functionality, allowing an authenticated attacker with administrator privileges to specify arbitrary file paths for deletion. This flaw enables deletion of any file on the server accessible by the web server process, including critical configuration files like wp-config.php. Deleting such files can disrupt WordPress operation and open avenues for remote code execution by enabling attackers to upload malicious files or manipulate the environment. The vulnerability affects all versions up to and including 2.5.4, with no patches currently available. The CVSS 3.1 score of 6.5 reflects a medium severity, considering the attack vector is network-based, requires high privileges, no user interaction, and impacts integrity and availability but not confidentiality. Although no known exploits are reported in the wild, the potential impact is significant due to the ability to delete arbitrary files. The vulnerability is particularly dangerous in environments where multiple administrators exist or where credentials might be compromised, as it leverages legitimate access to escalate damage. The plugin is widely used in WordPress installations for backup purposes, making the vulnerability relevant to many organizations relying on WordPress for their web presence.

For European organizations, the impact of this vulnerability can be substantial. Organizations using the CYAN Backup plugin in WordPress environments risk unauthorized deletion of critical files, potentially causing website downtime, data loss, and service disruption. The ability to delete wp-config.php or other essential files can lead to remote code execution, enabling attackers to gain persistent control over web servers. This can result in data breaches, defacement, or use of compromised servers in further attacks. Given the widespread use of WordPress across Europe, particularly in sectors such as e-commerce, media, and government, the disruption could affect business continuity and reputation. Additionally, organizations subject to GDPR must consider the regulatory implications of data loss or breach resulting from exploitation. The requirement for administrator-level access limits the attack surface but does not eliminate risk, especially in environments with multiple administrators or weak credential management.

1. Immediately restrict administrator access to the CYAN Backup plugin to trusted personnel only and review administrator accounts for suspicious activity. 2. Monitor file system integrity on WordPress servers, focusing on critical files like wp-config.php and backup directories, to detect unauthorized deletions. 3. Implement strict access controls and multi-factor authentication for WordPress administrator accounts to reduce the risk of credential compromise. 4. Regularly back up WordPress sites and store backups securely offline to enable recovery from file deletion attacks. 5. Apply patches or updates from the vendor as soon as they become available; in the absence of official patches, consider disabling or uninstalling the CYAN Backup plugin temporarily. 6. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the plugin’s delete functionality. 7. Conduct security audits and penetration testing focused on WordPress plugins to identify and remediate similar vulnerabilities proactively.