CVE-2025-9339 is an SQL injection vulnerability identified in the SIMPLE.ERP software, specifically in the warehouse document filtering form. The flaw allows a logged-in user to inject malicious SQL commands due to improper neutralization of special elements in SQL queries (CWE-89). The input fields involved impose a 20-character limit, which restricts the complexity of injected queries and prevents straightforward data exfiltration. However, the vulnerability enables destructive actions such as deleting tables with names up to six characters, posing a significant risk to data integrity and availability. The vulnerability affects all versions prior to 6.30@a04.3. The CVSS 4.0 score is 7.1 (high), reflecting network attack vector, low attack complexity, no user interaction, and the requirement for low privileges. No known public exploits exist yet, but the vulnerability's characteristics make it a credible threat. The issue was reserved in August 2025 and published in October 2025 by CERT-PL. The lack of patch links suggests that a fix may be pending or recently released. The vulnerability's exploitation could disrupt business operations by deleting critical data tables, especially in warehouse management contexts.

For European organizations, the impact of CVE-2025-9339 can be severe, particularly for those relying on SIMPLE.ERP for warehouse and inventory management. Successful exploitation can lead to deletion of database tables, causing data loss, operational disruption, and potential financial damage. Although data exfiltration appears limited due to input constraints, the integrity and availability of critical business data are at risk. This can affect supply chain continuity, inventory accuracy, and reporting. Organizations in sectors such as manufacturing, logistics, and retail that use SIMPLE.ERP may face operational downtime and recovery costs. Additionally, regulatory compliance risks arise if data loss affects reporting or audit trails. The requirement for authenticated access reduces the attack surface but insider threats or compromised credentials could facilitate exploitation. The absence of known exploits currently provides a window for proactive defense.

1. Apply vendor patches or updates as soon as they become available for SIMPLE.ERP version 6.30@a04.3 or later. 2. Restrict access to the warehouse document filtering form to only trusted and necessary users, minimizing the risk of exploitation by unauthorized personnel. 3. Implement strict input validation and sanitization on all user inputs, especially those used in SQL queries, to prevent injection attacks. 4. Harden database permissions by ensuring that application accounts have the least privileges necessary, preventing destructive commands such as DROP TABLE. 5. Monitor logs and database activity for unusual queries or deletions that could indicate exploitation attempts. 6. Conduct regular security audits and penetration testing focused on ERP modules handling critical data. 7. Educate users about credential security to reduce risks from compromised accounts. 8. Consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns within the constrained input length.