CVE-2025-4257 in SeaCMS
Summary
by MITRE • 05/05/2025
A vulnerability, which was classified as problematic, has been found in SeaCMS 13.2. This issue affects some unknown processing of the file /admin_pay.php. The manipulation of the argument cstatus leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 10/06/2025
This vulnerability in SeaCMS version 13.2 represents a critical cross-site scripting flaw that resides within the administrative payment processing module. The vulnerability specifically manifests in the /admin_pay.php file where the cstatus parameter is improperly handled, creating an avenue for malicious actors to inject arbitrary JavaScript code into the application's response. The flaw stems from inadequate input validation and output encoding practices, allowing attackers to manipulate the cstatus argument to execute malicious scripts within the context of a victim's browser session. This particular weakness enables attackers to perform session hijacking, defacement of administrative interfaces, or redirection to malicious sites, all while operating under the privileges of authenticated administrators.
The technical implementation of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities through improper neutralization of input data. The attack vector is classified as remote since no local access or authentication is required to exploit the flaw, making it particularly dangerous for web applications that maintain administrative interfaces accessible over the internet. The exploitation process typically involves crafting a malicious URL containing the XSS payload within the cstatus parameter, which when processed by the vulnerable application, executes the injected script in the browser of any user who views the affected administrative page. This remote code execution capability through client-side scripting represents a significant threat to the integrity and confidentiality of administrative functions within the CMS.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with potential access to sensitive administrative functionalities and data within the SeaCMS environment. Successful exploitation could enable unauthorized modification of payment processing configurations, access to financial transaction records, or even complete administrative control over the CMS installation. The disclosure of the exploit to the public community accelerates the risk profile significantly, as it removes the element of zero-day discovery and makes the vulnerability immediately available to malicious actors. This exposure creates a window of opportunity for attackers to develop automated exploitation tools and deploy them across multiple targets, potentially affecting numerous SeaCMS installations worldwide.
Organizations utilizing SeaCMS version 13.2 should immediately implement multiple layers of defense to mitigate this vulnerability. The primary mitigation strategy involves implementing proper input validation and output encoding for all user-supplied data, particularly within administrative interfaces where the cstatus parameter is processed. This includes sanitizing the cstatus argument to prevent script execution and ensuring that all user inputs are properly escaped before being rendered in the application's response. Additionally, implementing content security policies that restrict script execution and employing web application firewalls can provide additional protection against exploitation attempts. The vulnerability also highlights the importance of regular security updates and patch management, as this issue represents a preventable flaw that could have been addressed through proper code review and security testing practices. Organizations should also consider implementing role-based access controls and monitoring administrative interfaces for suspicious activity to detect potential exploitation attempts. The ATT&CK framework categorizes this vulnerability under the T1190 technique for exploiting web applications, emphasizing the need for comprehensive web application security measures including regular penetration testing and security code reviews to identify and remediate similar vulnerabilities before they can be exploited by adversaries.