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CVE-2025-9991: WordPress Plugin Vulnerability Allows for Local File Inclusion

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Overview

The CVE-2025-9991 is a critical vulnerability that affects all versions up to and including 4.3.34 of Tiny Bootstrap Elements Light plugin for WordPress, a widely used CMS platform. The vulnerability is a significant cause for concern due to the popularity of WordPress and the potential for widespread exploitation. It allows for Local File Inclusion (LFI), which could lead to a complete system compromise and subsequent data leakage.

Vulnerability Summary

CVE ID: CVE-2025-9991
Severity: High (8.1/10)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

Tiny Bootstrap Elements Light for WordPress | 4.3.34 and below

How the Exploit Works

This vulnerability is exploited using the ‘language’ parameter in the Tiny Bootstrap Elements Light plugin for WordPress. Unauthenticated attackers can manipulate the parameter to include and execute arbitrary .php files on the server. The execution of arbitrary PHP code can be utilized to bypass access controls, obtain sensitive data, or achieve code execution, particularly in cases where .php file types can be uploaded and included.

Conceptual Example Code

Here’s a hypothetical example of how the vulnerability might be exploited:

GET /wp-content/plugins/tiny-bootstrap-elements-light/?language=../../../../wp-config.php HTTP/1.1
Host: vulnerablewordpress.com

In this example, the attacker is exploiting the ‘language’ parameter to include the ‘wp-config.php’ file, which contains sensitive configuration data, including database credentials.

Mitigation Guidance

The best way to mitigate this vulnerability is 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. This vulnerability emphasizes the importance of maintaining a robust patch management strategy and regularly updating all plugins, themes, and the WordPress core.

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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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