CVE-2025-52758
9.1Gesundheit Bewegt GmbH · Zippy
An unrestricted file upload vulnerability in the Zippy WordPress plugin allows authenticated attackers with high privileges to execute malicious files on the server.
Executive summary
The Zippy plugin for WordPress contains an unrestricted file upload vulnerability that permits authenticated attackers to achieve remote code execution.
Vulnerability
This is an unrestricted upload of a file with a dangerous type (CWE-434). The CVSS vector (PR:H) indicates that the vulnerability requires high-level administrative privileges, limiting the initial attack vector to already compromised or malicious user accounts.
Business impact
An attacker who successfully uploads a malicious file can achieve full remote code execution, leading to a total compromise of the web server. This could result in complete data loss, unauthorized access to the hosting environment, and the use of the server for secondary attacks, justifying the critical severity score.
Remediation
Immediate Action: As no patched version is currently available, immediately deactivate and remove the Zippy plugin from the environment to eliminate the attack surface.
Proactive Monitoring: Review file system logs for unauthorized uploads to the plugin's directory and check for the existence of unexpected executable files within the web root.
Compensating Controls: Implement strict file-type validation on the server level and restrict file execution permissions in the directories utilized by the WordPress plugin.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Since a fix has not been released, the only effective remediation is the immediate removal of the Zippy plugin. Security teams should audit administrative accounts to ensure no unauthorized users are present, as this vulnerability represents a significant risk if an account is already compromised.