A vulnerability has been found in Yonyou KSOA 9.0. The impacted element is an unknown function of the file /worksheet/del_work.jsp of the component HTTP GET Parameter Handler. The manipulation of the argument ID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
The severity of this vulnerability is classified as medium, with a CVSS score of 5.5. This score indicates a moderate risk, emphasizing the importance of addressing the vulnerability promptly. Organizations using Yonyou KSOA 9.0 are at risk, as attackers may leverage this vulnerability to perform SQL injection attacks, potentially compromising sensitive data.
Organizations should prioritize patching immediately. The public disclosure of this vulnerability raises significant concerns, particularly given the lack of a response from the vendor regarding the disclosure. It is crucial for organizations to assess their exposure and implement appropriate security measures without delay.
Given the exploitability of this vulnerability, organizations must take action to mitigate the risks associated with it. SQL injection vulnerabilities can lead to severe consequences, including unauthorized data access and potential data breaches.
Vulnerability Details
The official CVE description outlines that this vulnerability allows for SQL injection via the argument ID in the specified JSP file. The vulnerability type is categorized under SQL injection, specifically identified by CWE-89. The CVSS version 4.0 provides a vector string indicating the attack vector as NETWORK and the attack complexity as LOW. Affected product is Yonyou KSOA version 9.0, with the vulnerability published on January 18, 2026.
The CVSS score from NVD is 9.8, indicating a critical severity level, which emphasizes the potential impact of exploitation. The vulnerability could lead to high confidentiality, integrity, and availability impacts.
Technical Analysis
The root cause of this vulnerability stems from improper validation of user inputs in the HTTP GET Parameter Handler. Attackers can manipulate the ID parameter to execute arbitrary SQL commands, resulting in unauthorized access or modification of the database contents.
The attack vector for this vulnerability is network-based, meaning that an attacker can initiate an attack remotely without needing physical access to the system. The attack complexity is classified as low, indicating that minimal effort is required to exploit this vulnerability. Furthermore, no privileges are required to exploit it, and user interaction is not necessary.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive data, which can lead to data breaches and compliance violations. The potential blast radius is significant, as SQL injection attacks can affect not only the application in question but also underlying databases and related systems.
The urgency for remediation is highlighted by the critical CVSS score of 9.8 from NVD. Organizations must assess their exposure and address this vulnerability in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is Yonyou KSOA 9.0. Organizations running this version should take immediate action to remediate the vulnerability.
Mitigation & Remediation
Organizations should apply the latest patches provided by Yonyou for KSOA 9.0. If a patch is unavailable, temporary workarounds include implementing input validation and sanitization in the application to prevent SQL injection attacks.
For comprehensive security, organizations may consider engaging in penetration testing to assess their security posture.
Detection Guidance
To detect potential exploitation, organizations should monitor logs for unusual database queries and behavioral anomalies associated with unauthorized access attempts.
AppSecure Threat Intelligence Insight
This vulnerability represents a significant risk within the Yonyou KSOA platform, highlighting the critical need for regular security assessments and timely patch management. Security teams should prioritize identifying and remediating similar vulnerabilities in their applications.
Organizations can benefit from implementing a comprehensive vulnerability management program that includes regular security training for development teams to reduce the likelihood of similar vulnerabilities in the future.
Engaging in proactive security measures, such as penetration testing methodology, will help organizations better understand their security posture and the effectiveness of their defenses.
Lastly, organizations should continuously evaluate their security controls and stay informed about emerging threats to ensure robust protection against vulnerabilities like CVE-2026-1120.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)