CVE-2026-1546 identifies a SQL injection vulnerability in the jishenghua jshERP software, specifically affecting versions 3.0 through 3.6. The vulnerability resides in the getBillItemByParam function located in the /jshERP-boot/depotItem/importItemExcel file, within the DepotItemMapperEx component. The issue arises from improper sanitization or validation of the barCodes parameter, which is used in SQL queries without adequate escaping or parameterization. This allows an attacker to inject malicious SQL code remotely, without requiring authentication or user interaction. Exploiting this flaw could enable attackers to read, modify, or delete sensitive database information, potentially leading to data breaches, data corruption, or denial of service. The vulnerability has a CVSS 4.0 base score of 5.3, reflecting medium severity, with network attack vector, low complexity, no privileges required, and no user interaction needed. Although the vulnerability was responsibly reported early, the vendor has not yet issued a patch, and public exploit details are available, increasing the risk of exploitation. The lack of a patch and the presence of a public exploit heighten the urgency for affected organizations to implement mitigations. The vulnerability impacts the confidentiality, integrity, and availability of ERP data, which is critical for business operations and supply chain management.

For European organizations, exploitation of CVE-2026-1546 could result in unauthorized access to sensitive business data, including financial records, inventory details, and supplier information managed within jshERP. This could lead to data breaches, intellectual property theft, or manipulation of business-critical data, disrupting operations and damaging reputations. The ERP system’s availability could also be compromised, affecting supply chain continuity and operational workflows. Given the remote exploitability without authentication, attackers could target vulnerable systems en masse, increasing the risk of widespread impact. Organizations in sectors relying heavily on ERP systems for logistics, manufacturing, and distribution are particularly vulnerable. Additionally, regulatory compliance risks arise under GDPR if personal or sensitive data is exposed. The absence of a vendor patch means organizations must rely on compensating controls to reduce risk until an official fix is available.

European organizations should immediately audit their environments to identify any deployments of jshERP versions 3.0 through 3.6. Network-level protections such as web application firewalls (WAFs) should be configured to detect and block SQL injection attempts targeting the barCodes parameter. Input validation and sanitization should be enforced at the application layer if source code access is available, implementing parameterized queries or prepared statements for database interactions. Restricting access to the affected endpoint (/jshERP-boot/depotItem/importItemExcel) to trusted IP ranges or via VPN can reduce exposure. Monitoring and logging database queries and application logs for anomalous activity related to barCodes inputs can help detect exploitation attempts early. Organizations should engage with the vendor for patch timelines and consider temporary isolation or segmentation of affected ERP systems to limit potential damage. Regular backups and tested recovery procedures are essential to mitigate data loss or corruption. Finally, raising user awareness about the vulnerability and potential phishing or social engineering attempts exploiting this flaw is advisable.