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CVE-2025-9874: WordPress Plugin Ultimate Classified Listings Vulnerable to Local File Inclusion

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Overview

This report details a significant security vulnerability (CVE-2025-9874) in the Ultimate Classified Listings plugin for WordPress. This vulnerability can result in Local File Inclusion, posing a serious threat to users running any version up to and including 1.6. Due to this CVE, authenticated attackers with Contributor-level access and above can potentially bypass access controls, access sensitive data, and execute arbitrary .php files on the server, leading to severe system compromise.

Vulnerability Summary

CVE ID: CVE-2025-9874
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: Low (Contributor-level Access)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

Ultimate Classified Listings Plugin for WordPress | All versions up to and including 1.6

How the Exploit Works

The vulnerability lies in the ‘uclwp_dashboard’ shortcode of the plugin, which fails to properly sanitize user-supplied input. This allows an authenticated user with contributor-level access to inject malicious .php files into the server. Once the server executes these files, the attacker can achieve arbitrary code execution, leading to the violation of access controls, acquisition of sensitive data, or further system compromise.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited:

POST /wp-content/plugins/ultimate-classified-listings/uclwp_dashboard HTTP/1.1
Host: target.example.com
Content-Type: application/php
{ "uclwp_dashboard": "../../../../../malicious_file.php" }

In this example, the attacker uses directory traversal to point to a malicious .php file placed elsewhere on the server, exploiting the vulnerability to execute arbitrary code.

Mitigation Guidance

To mitigate this vulnerability, users are advised to apply the vendor patch as soon as it becomes available. In the meantime, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary protection by monitoring and blocking suspicious activities.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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