CVE-2025-12092 is a path traversal vulnerability classified under CWE-22, found in the CYAN Backup plugin for WordPress, developed by gregross. The vulnerability exists in the plugin's 'delete' functionality, which fails to properly validate and restrict file paths. This flaw allows authenticated users with administrator privileges to craft malicious requests that delete arbitrary files on the server. Since the plugin does not sufficiently limit pathname traversal, attackers can specify paths outside the intended backup directories. Deleting critical files such as wp-config.php can disrupt site configuration and enable further attacks, including remote code execution if attackers replace or manipulate files. The vulnerability affects all versions up to and including 2.5.4. The CVSS 3.1 base score is 6.5, with vector AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H, indicating network exploitable, low attack complexity, requiring high privileges, no user interaction, unchanged scope, no confidentiality impact, but high integrity and availability impact. No public exploits have been reported yet, but the potential for severe damage exists due to the ability to delete arbitrary files. The vulnerability was reserved on 2025-10-22 and published on 2025-11-08. The plugin is widely used in WordPress environments, making this a notable threat for website administrators.

The primary impact of this vulnerability is the ability for an authenticated administrator to delete arbitrary files on the web server hosting the WordPress site. This can lead to significant integrity and availability issues, including site downtime, loss of critical configuration files, and potential escalation to remote code execution if attackers manipulate or replace deleted files with malicious code. Organizations relying on CYAN Backup for WordPress backups risk losing backup data and critical site files, which can disrupt business operations and damage reputation. The attack requires administrator-level access, so the threat is limited to compromised or malicious insiders or attackers who have already gained elevated privileges. However, the ease of exploitation once admin access is obtained makes it a serious concern. The vulnerability does not directly impact confidentiality but can indirectly lead to data exposure if attackers gain further control. The lack of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as proof-of-concept exploits may emerge.

To mitigate this vulnerability, organizations should immediately update the CYAN Backup plugin to a patched version once available. Until a patch is released, administrators should restrict plugin access to trusted users only and monitor administrative accounts for suspicious activity. Implementing strict file system permissions can limit the damage potential by preventing the web server user from deleting critical files outside designated directories. Employing Web Application Firewalls (WAFs) with custom rules to detect and block suspicious path traversal patterns in requests targeting the plugin's delete functionality can provide temporary protection. Regular backups stored offsite or outside the web root are essential to recover from any malicious deletions. Additionally, auditing and hardening WordPress administrator accounts, including enforcing strong authentication and monitoring for privilege escalations, will reduce the risk of exploitation. Finally, security teams should prepare incident response plans for potential exploitation scenarios involving file deletion and remote code execution.