CVE-2026-7670: Medium Vulnerability in Jinher OA

A flaw has been found in Jinher OA 1.0. The affected element is an unknown function of the file /C6/JHSoft.Web.PlanSummarize/UserSel.aspx. This manipulation of the argument DeptIDList causes SQL injection. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The vulnerability is rated with a CVSS score of 5.5, indicating a medium severity level. This score highlights the importance of addressing the issue promptly, as SQL injection vulnerabilities can lead to significant data breaches and unauthorized access.

Risk to organizations includes potential data leakage and system compromise. Given the nature of SQL injection attacks, attackers may leverage this vulnerability to manipulate database queries, extract sensitive information, or even compromise the entire application.

Organizations should prioritize patching immediately. It is imperative to mitigate the risk posed by this vulnerability due to its potential for exploitation.

Vulnerability Details

CVE-2026-7670 is an SQL injection vulnerability that affects Jinher OA 1.0. The specific weakness is categorized under CWE-89 (SQL Injection) and CWE-74 (Injection). The CVSS 3.1 score of 7.3 indicates a high severity level, emphasizing the urgency for remediation.

The vulnerability was published on May 2, 2026, and it has been classified as "Received" in terms of its status. Organizations using affected versions should take immediate action to ensure the security of their applications.

Technical Analysis

The root cause of this vulnerability lies in improper handling of user input in the SQL query process. Attackers can exploit this by sending crafted requests that manipulate the database query through the DeptIDList parameter, leading to unauthorized access to sensitive data.

The attack vector is network-based, allowing remote exploitation without the need for prior authentication or user interaction. The complexity of the attack is classified as low, meaning that even adversaries with minimal technical skill could potentially exploit this vulnerability.

The impact on confidentiality, integrity, and availability is assessed as low, but the potential for exploitation remains a serious concern. Organizations must monitor for unusual database activity to detect any attempted exploitation.

Risk & Impact Analysis

Real-world deployment of Jinher OA 1.0 could expose organizations to significant risks due to this SQL injection vulnerability. Attackers may exploit this weakness to manipulate database operations, leading to unauthorized access to sensitive information or even complete system compromise.

The blast radius includes any applications relying on the vulnerable component, which could result in data breaches affecting customers and sensitive company information. Organizations must assess the urgency of this vulnerability based on the CVSS score and the potential for exploitation.

Organizations should schedule remediation through immediate patching to mitigate this vulnerability's risks effectively.

Exploitation Status

Affected Versions

All versions prior to vendor patch are affected by this vulnerability. Organizations should ensure they are using the latest version of Jinher OA to mitigate this risk.

Mitigation & Remediation

Organizations should prioritize patching Jinher OA as soon as possible. To remediate this vulnerability, users should contact the vendor for the latest patch information or upgrade to a secure version. In the absence of a patch, workarounds may include filtering input to prevent SQL injection and implementing web application firewalls to detect and block malicious inputs.

Additionally, organizations may benefit from continuous security testing to identify similar vulnerabilities in their systems.

Continuous security testing can help organizations identify and remediate vulnerabilities proactively.

Detection Guidance

To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual SQL query patterns, specifically those involving the DeptIDList parameter. Behavioral anomalies related to unauthorized access attempts should also be flagged for further investigation.

Network signatures that identify malicious SQL injection attempts can be beneficial in preventing exploitation.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2026-7670 lies in its representation of the ongoing challenges organizations face with SQL injection vulnerabilities. This incident underscores the necessity for proactive security measures, including regular security assessments and vulnerability management programs.

The trend of SQL injection remains prevalent, and organizations should remain vigilant against exploitation attempts. Lessons from this incident highlight the importance of secure coding practices and thorough input validation.

For further insights on securing applications, organizations can refer to our blog on penetration testing methodology.

Additionally, organizations should consider implementing a vulnerability management program to stay ahead of potential threats.

In conclusion, CVE-2026-7670 serves as a reminder of the evolving threat landscape, and organizations must adopt a proactive stance to defend against vulnerabilities.