CVE-2026-1198 Overview
CVE-2026-1198 is a SQL Injection vulnerability [CWE-89] affecting SIMPLE.ERP. The flaw resides in the search functionality of the Obroty na kontach (Account Turnover) window. Insufficient input validation allows an authenticated attacker to inject arbitrary SQL statements into database queries executed by the application. Successful exploitation enables unauthorized access to sensitive database contents and integrity tampering of stored records. The vendor addressed the issue in version 6.30@A04.4_u06. The vulnerability requires network access and low-privilege authentication, but no user interaction.
Critical Impact
An authenticated attacker can execute malicious SQL queries against the SIMPLE.ERP database, exposing or modifying confidential business and accounting data.
Affected Products
- SIMPLE.ERP versions prior to 6.30@A04.4_u06
- SIMPLE.ERP Obroty na kontach module search functionality
- Deployments using the affected ERP database backend
Discovery Timeline
- 2026-02-26 - CVE-2026-1198 published to NVD
- 2026-04-15 - Last updated in NVD database
Technical Details for CVE-2026-1198
Vulnerability Analysis
The vulnerability stems from improper handling of user-supplied input in the search functionality of the Obroty na kontach window within SIMPLE.ERP. The application concatenates attacker-controlled values directly into SQL statements without parameterization or sanitization. An authenticated user with access to the affected search interface can craft input that breaks out of the intended query context and append arbitrary SQL clauses. The database engine executes the manipulated query under the application's privileges. This grants the attacker the ability to read or modify records that the user interface would normally restrict. The confidentiality and integrity impact is high, while availability is not directly affected.
Root Cause
The root cause is a lack of input validation and parameterized query construction [CWE-89] in the account turnover search workflow. User input from the search field flows into dynamically built SQL strings without escaping or binding. This pattern enables classic in-band SQL Injection through the affected parameter.
Attack Vector
Exploitation requires network access to the SIMPLE.ERP application and valid low-privilege credentials. The attacker authenticates, navigates to the Obroty na kontach window, and submits a malicious payload through the search field. The crafted input alters the structure of the executed SQL statement. No user interaction from another party is required. Refer to the CERT Security Post CVE-2026-1198 for additional technical details published by CERT Polska.
Detection Methods for CVE-2026-1198
Indicators of Compromise
- Application or database logs containing SQL meta-characters such as ', --, ;, UNION, or SELECT originating from the account turnover search field
- Unexpected database errors or stack traces tied to the Obroty na kontach module
- Authenticated sessions issuing high volumes of search queries with unusual payload length or syntax
Detection Strategies
- Review SIMPLE.ERP audit logs for authenticated users issuing malformed or anomalous search queries
- Deploy database activity monitoring to flag queries originating from the ERP service account that deviate from baseline patterns
- Enable web application firewall (WAF) signatures for SQL Injection on the SIMPLE.ERP front-end
Monitoring Recommendations
- Forward application, database, and authentication logs to a centralized analytics platform for correlation
- Alert on repeated SQL error responses tied to a single authenticated session
- Track privilege use and data export volumes for accounts with access to the account turnover module
How to Mitigate CVE-2026-1198
Immediate Actions Required
- Upgrade SIMPLE.ERP to version 6.30@A04.4_u06 or later as the primary remediation
- Restrict access to the Obroty na kontach search functionality to only users who require it
- Audit recent activity in the affected module to identify any malicious queries or unauthorized data access
- Rotate ERP database credentials if compromise is suspected
Patch Information
The vendor fixed CVE-2026-1198 in SIMPLE.ERP version 6.30@A04.4_u06. Customers should obtain the update directly from the vendor. Refer to the Simple.com Security Overview for vendor information and the CERT Security Post CVE-2026-1198 for advisory details.
Workarounds
- Limit network exposure of the ERP application to trusted internal segments and VPN users
- Apply WAF rules to block SQL Injection patterns targeting the account turnover endpoint
- Reduce database privileges granted to the ERP service account to the minimum required for normal operations
# Verify installed SIMPLE.ERP version meets the patched release
# Replace with the appropriate vendor-supplied query or check tool
# Patched version: 6.30@A04.4_u06
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
