CVE-2026-0493 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the SAP Fiori App for Intercompany Balance Reconciliation, a component used to manage and reconcile financial transactions between affiliated companies. The vulnerability arises because the application improperly handles request semantics, allowing state-changing actions to be triggered via inappropriate request types without proper CSRF token validation. This deviation enables an attacker to craft malicious requests that, when executed by an authenticated user’s browser, perform unintended actions such as altering intercompany balance data. The flaw affects a broad range of SAP Fiori versions (UIAPFI70 500 through 900 series, and S4CORE versions 102 to 109), indicating widespread exposure across SAP’s enterprise resource planning (ERP) ecosystem. The CVSS 3.1 score of 4.3 reflects a medium severity, with the attack vector being network-based, requiring low attack complexity, and needing privileges of an authenticated user but no user interaction. The vulnerability impacts system integrity by allowing unauthorized modifications but does not compromise confidentiality or availability. No public exploits or patches are currently available, emphasizing the need for proactive mitigation. The vulnerability is classified under CWE-352, which highlights weaknesses in CSRF protections that can lead to unauthorized state changes in web applications.

For European organizations, this vulnerability poses a risk primarily to the integrity of financial data managed through SAP Fiori’s Intercompany Balance Reconciliation app. Unauthorized state changes could lead to inaccurate financial records, misreported intercompany balances, and potential compliance issues with financial regulations such as GDPR and IFRS. While confidentiality and availability remain unaffected, the integrity compromise could disrupt accounting processes and internal audits, potentially causing financial discrepancies and operational inefficiencies. Organizations heavily reliant on SAP ERP systems for intercompany financial operations are at greater risk. Attackers exploiting this vulnerability could manipulate transaction data without detection if monitoring and controls are insufficient. This could undermine trust in financial reporting and expose organizations to regulatory scrutiny. Given SAP’s widespread adoption in Europe, especially in Germany, France, the UK, and the Netherlands, the impact could be significant in sectors such as manufacturing, finance, and logistics where intercompany transactions are frequent.

To mitigate this vulnerability, European organizations should implement the following specific measures: 1) Enforce strict CSRF token validation on all state-changing requests within the SAP Fiori Intercompany Balance Reconciliation app, ensuring tokens are unique per session and verified server-side. 2) Restrict HTTP methods to appropriate verbs (e.g., POST for state changes) and reject requests using inappropriate methods that could trigger unintended actions. 3) Conduct thorough code reviews and penetration testing focused on CSRF protections within custom SAP Fiori extensions or integrations. 4) Monitor logs for unusual or unexpected intercompany transaction modifications, setting alerts for anomalous activity patterns. 5) Limit user privileges to the minimum necessary, reducing the risk posed by compromised accounts. 6) Apply SAP security notes and patches promptly once available, and subscribe to SAP’s security advisories for timely updates. 7) Educate users about the risks of CSRF and encourage safe browsing practices, especially when accessing SAP portals. 8) Consider deploying web application firewalls (WAF) with CSRF detection capabilities to provide an additional layer of defense.