CVE-2025-57055 in WonderCMS
Summary
by MITRE • 09/17/2025
WonderCMS 3.5.0 is vulnerable to Server-Side Request Forgery (SSRF) in the custom module installation functionality. An authenticated administrator can supply a malicious URL via the pluginThemeUrl POST parameter. The server fetches the provided URL using curl_exec() without sufficient validation, allowing the attacker to force internal or external HTTP requests.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 09/17/2025
The vulnerability identified as CVE-2025-57055 affects WonderCMS version 3.5.0 and represents a critical server-side request forgery flaw within the custom module installation feature. This issue arises from insufficient input validation when processing the pluginThemeUrl POST parameter, which allows authenticated administrators to manipulate the system's ability to fetch external resources. The vulnerability stems from the application's direct use of curl_exec() function without proper sanitization or validation of the supplied URLs, creating a pathway for malicious actors to initiate unauthorized HTTP requests from the server.
The technical implementation of this flaw occurs during the module installation process where the application accepts user-supplied URLs to download and install custom themes or plugins. When an authenticated administrator submits a malicious URL through the pluginThemeUrl parameter, the system processes this input without adequate validation mechanisms to prevent access to internal network resources or external malicious endpoints. The curl_exec() function executes the request without filtering or restricting the URL scheme, protocol, or destination, enabling attackers to potentially access internal services, bypass network segmentation, or redirect requests to attacker-controlled servers.
Operationally, this vulnerability poses significant risks to organizations using WonderCMS 3.5.0 as it allows an authenticated attacker with administrative privileges to perform unauthorized network reconnaissance and potentially exfiltrate sensitive data. The attacker can leverage this flaw to access internal services that are normally not directly reachable from the internet, such as databases, internal APIs, or other networked systems. Additionally, the vulnerability enables potential data exfiltration through controlled external endpoints, as the server can be forced to make HTTP requests to attacker-controlled domains. This capability extends beyond simple information gathering to potentially facilitate further attacks through the exploitation of other vulnerabilities accessible through the internal network.
The security implications align with CWE-918, which specifically addresses server-side request forgery vulnerabilities, and can be mapped to ATT&CK technique T1071.004 for application layer protocol usage. Organizations should immediately implement mitigations including input validation of all URL parameters, restriction of URL schemes allowed for module installations, and implementation of network segmentation to prevent internal service access from web applications. The recommended solution involves validating the pluginThemeUrl parameter against a whitelist of approved domains or protocols, implementing proper URL parsing to ensure no internal IP ranges or restricted protocols are allowed, and considering the use of proxy servers or network firewalls to prevent outbound connections to potentially malicious destinations. Regular security updates and patch management should be prioritized to address this vulnerability and prevent exploitation attempts that could compromise the entire web application infrastructure.