CVE-2025-4293 in MRCMS
Summary
by MITRE • 05/06/2025
A vulnerability was found in MRCMS 3.1.3 and classified as problematic. Affected by this issue is some unknown functionality of the file /admin/group/edit.do of the component Group Edit Page. The manipulation leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 05/06/2025
This vulnerability exists within the MRCMS 3.1.3 content management system where a cross site scripting flaw has been identified in the Group Edit Page functionality. The issue is specifically located in the /admin/group/edit.do file which handles administrative group management operations. The vulnerability classification indicates a significant security risk as it allows malicious actors to inject arbitrary JavaScript code into the web application. This particular flaw represents a classic persistent cross site scripting attack vector where an attacker can manipulate input parameters to execute malicious scripts in the context of other users' browsers. The attack can be initiated remotely without requiring any special privileges or authentication, making it particularly dangerous for administrative interfaces. The disclosure of the exploit to the public community means that threat actors can readily leverage this vulnerability to compromise systems.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the Group Edit Page component. When administrators or users interact with the edit functionality, the application fails to properly sanitize user-supplied data before rendering it in the web interface. This allows attackers to inject malicious payloads that execute within the browser context of legitimate users who access the affected page. The vulnerability falls under the CWE-79 category of Cross Site Scripting, specifically representing a server-side XSS flaw where the malicious input is processed and stored before being served to other users. The attack vector operates through the web application's parameter handling mechanisms, where user-controllable inputs are not adequately filtered or escaped before being included in dynamic web content.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. An attacker who successfully exploits this flaw can potentially escalate privileges within the administrative interface, gain access to sensitive system information, or manipulate group permissions and user access controls. The remote exploit capability means that attackers can target administrators from anywhere on the internet, making the attack surface extremely wide. Given that this affects the Group Edit Page functionality, the potential for privilege escalation exists if administrators are logged in when viewing manipulated content. The vulnerability can also serve as a stepping stone for more sophisticated attacks, including credential harvesting, data exfiltration, or establishing persistent access through browser-based backdoors. The public disclosure of the exploit increases the likelihood of widespread exploitation across multiple installations.
Mitigation strategies should focus on immediate input validation and output encoding implementations within the affected application components. The primary recommendation involves implementing strict sanitization of all user inputs before processing them through the Group Edit functionality. This includes employing context-aware output encoding for all dynamic content rendered in the web interface. Organizations should also consider implementing Content Security Policy headers to limit the execution of unauthorized scripts within the application context. Regular security updates and patches should be applied immediately upon availability from the vendor, as this vulnerability represents a known security flaw in the specific software version. Network-based protections such as web application firewalls can provide additional layers of defense by monitoring for known exploit patterns. The implementation of principle of least privilege should be enforced for administrative accounts, limiting the potential damage from successful exploitation. Security monitoring should include detection of suspicious parameter values in the affected endpoint and regular vulnerability scanning of the application to identify similar flaws in other components.