CVE-2025-4000 in Zhiyuan OA Web Application System
Summary
by MITRE • 04/28/2025
A vulnerability, which was classified as problematic, was found in Seeyon Zhiyuan OA Web Application System 8.1 SP2. Affected is an unknown function of the file seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The manipulation of the argument Name leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 01/15/2026
This vulnerability resides within the Seeyon Zhiyuan OA Web Application System version 8.1 SP2, specifically targeting the ssoproxy.jsp component located at seeyon\opt\Seeyon\A8\ApacheJetspeed\webapps\seeyon\ssoproxy\jsp\ssoproxy.jsp. The flaw manifests as a cross site scripting vulnerability that occurs when processing the Name argument parameter, representing a critical security weakness that enables malicious actors to inject and execute arbitrary script code within the context of a victim's browser session. The vulnerability has been publicly disclosed and is actively being exploited, making it particularly dangerous for organizations that have not yet implemented protective measures. This type of vulnerability falls under the CWE-79 category of Cross Site Scripting, which is classified as a persistent threat to web application security and represents one of the most common attack vectors in modern cybersecurity threats.
The technical exploitation of this vulnerability occurs through the manipulation of the Name argument parameter within the ssoproxy.jsp file, which fails to properly sanitize or validate user input before incorporating it into the web page output. When an attacker crafts a malicious payload containing script code within the Name parameter and submits it to the vulnerable system, the application processes this input without adequate filtering mechanisms, allowing the malicious code to execute in the context of other users' browsers who subsequently access the affected page. The remote exploitation capability means that attackers can launch this attack from any location without requiring physical access to the target system, making it particularly attractive for widespread exploitation campaigns. This vulnerability directly aligns with the ATT&CK technique T1566.001 which encompasses the use of malicious web content to execute code on target systems.
The operational impact of this vulnerability extends beyond simple script execution, as it can potentially enable attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even escalate privileges within the application environment. Organizations utilizing this version of the Seeyon OA system face significant risk of unauthorized access, data theft, and potential system compromise. The widespread nature of this vulnerability, combined with its public disclosure status, means that attackers can readily leverage automated tools to identify and exploit vulnerable installations across multiple organizations. Security teams must consider the potential for this vulnerability to serve as a foothold for more sophisticated attacks, including lateral movement within network environments or the establishment of persistent backdoors. The vulnerability represents a critical threat to the confidentiality, integrity, and availability of the affected systems, particularly given the sensitive nature of office automation applications that typically handle business-critical data and user credentials.
Organizations should immediately implement comprehensive mitigations including input validation and output encoding for all user-supplied parameters, particularly within the ssoproxy.jsp component. The recommended approach involves implementing strict parameter validation that filters out potentially malicious characters and sequences, combined with proper HTML encoding of all output to prevent script execution. Additionally, organizations should consider implementing web application firewalls that can detect and block malicious payload patterns targeting this specific vulnerability. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the broader application ecosystem, as this vulnerability may indicate broader input validation weaknesses throughout the system. The implementation of content security policies and the enforcement of secure coding practices should be prioritized to prevent similar vulnerabilities from emerging in future application versions, as outlined in industry standards such as the OWASP Top Ten and NIST cybersecurity guidelines for web application security.