H3-2025-0030
ThinkPHP 5.0.1 Remote Code Execution Vulnerability
| Category | VULNERABILITY |
| Base Score | 9.8 |
Description
The vulnerability in ThinkPHP version 5.0.1 is a critical remote code execution flaw that stems from improper handling of user-supplied input in the 's' parameter. In the affected endpoint, the application fails to adequately sanitize or validate input, thereby allowing unauthorized users to inject arbitrary PHP code into the execution flow. This lack of robust input validation, combined with the way ThinkPHP constructs and processes requests (using parameters like _method and filter), creates an exploitable scenario. An attacker can send a specially crafted POST request that includes a malicious payload, such as invoking the phpinfo function or more dangerous commands that lead to arbitrary code execution. Once the attacker successfully executes code remotely, they may gain full control over the web server environment. This could result in unauthorized access to sensitive data, the ability to modify or delete files, disruption of normal operations, and the potential for further lateral movement within the network. The vulnerability highlights a breakdown in secure coding practices in web frameworks where route handling and parameter processing are insufficiently hardened. Developers relying on ThinkPHP must pay special attention to input sanitization, secure parameter parsing, and should consider using hardened configurations and regular audits to prevent exploitation. Remediation activities such as code reviews, patch management, and implementation of additional security controls are essential to safeguard against potential attacks exploiting this vulnerability.
Impact
Exploitation of this vulnerability can lead to complete server compromise, data exposure, unauthorized access, and significant operational disruption, possibly affecting the integrity, availability, and confidentiality of the system.