CVE-2025-1890 in shishuocms
Summary
by MITRE • 03/04/2025
A vulnerability has been found in shishuocms 1.1 and classified as critical. This vulnerability affects the function handleRequest of the file src/main/java/com/shishuo/cms/action/manage/ManageUpLoadAction.java. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 03/05/2025
The vulnerability identified as CVE-2025-1890 represents a critical security flaw in shishuocms version 1.1 that fundamentally compromises the integrity and confidentiality of affected systems. This vulnerability resides within the ManageUpLoadAction.java file, specifically within the handleRequest function where inadequate input validation and sanitization mechanisms fail to properly restrict file upload operations. The flaw manifests when the application processes user-supplied file parameters without sufficient validation, creating an avenue for malicious actors to bypass intended security controls and upload arbitrary files to the target system.
The technical exploitation of this vulnerability stems from the absence of proper file type validation and content verification mechanisms within the application's upload handling logic. When the handleRequest function processes the file argument parameter, it fails to implement comprehensive checks that would normally validate file extensions, MIME types, or file content signatures. This oversight allows attackers to upload potentially malicious files including web shells, executable binaries, or other harmful payloads that can be executed within the application's context. The vulnerability's classification as unrestricted upload aligns with CWE-434 which specifically addresses the dangerous practice of accepting untrusted file uploads without proper validation controls. The remote exploitation capability means that attackers do not require physical access to the system and can leverage this vulnerability through network-based attacks.
The operational impact of CVE-2025-1890 extends far beyond simple data compromise, as it provides attackers with persistent access to affected systems and potentially enables full system compromise. Successful exploitation allows threat actors to upload malicious files that can be executed by the web server, creating backdoors for continued access, data exfiltration capabilities, or further attack propagation within the network. The public disclosure of the exploit increases the likelihood of automated attacks targeting vulnerable installations, making this vulnerability particularly dangerous in environments where shishuocms is deployed without proper security hardening. This vulnerability directly maps to ATT&CK technique T1195.002 which covers the use of web shells for maintaining access to compromised systems, and T1059.007 which addresses the execution of malicious code through script interpreters.
Organizations utilizing shishuocms version 1.1 must implement immediate remediation measures to address this critical vulnerability. The primary mitigation strategy involves implementing strict file validation controls that verify file extensions, MIME types, and content signatures before accepting any uploads. Additionally, the application should enforce proper file type restrictions and implement content inspection mechanisms to prevent the execution of malicious code. Security hardening practices should include restricting file upload directories, implementing proper access controls, and ensuring that uploaded files are stored outside the web root directory. Organizations should also consider implementing web application firewalls to detect and block suspicious upload attempts, while maintaining comprehensive monitoring and logging of file upload activities to detect potential exploitation attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the application stack, as this vulnerability demonstrates the critical importance of input validation and secure coding practices in preventing remote code execution attacks.