Description

SAP S/4HANA Finance (Advanced Payment Management) does not perform sufficient Cross-Site Request Forgery protection on certain requests, due to this an attacker with low privileges could craft a malicious link or page. If an authenticated victim interacts with it, unintended actions could be triggered on the web server on their behalf. This results in a low impact on confidentiality and integrity. There is no impact on availability.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.5",
  "pubDate": "2026-09-08T01:17:54.793Z",
  "pubdate": "2026-09-08T01:17:54.793Z",
  "executiveSummary": "A Cross-Site Request Forgery (CSRF) vulnerability exists within SAP S/4HANA Finance, specifically affecting the Advanced Payment Management module.\nThe vulnerability arises from insufficient validation of request origins, allowing unauthorized state-changing operations to be performed on behalf of an authenticated user.\nAn attacker with low privileges can craft a malicious web page or link designed to trigger unintended actions when accessed by an authenticated victim.\nSuccessful exploitation results in a compromise of confidentiality and integrity, though the impact on system availability remains negligible.\nThe attack requires the victim to be actively authenticated to the affected SAP S/4HANA instance at the time of interaction with the malicious content.\nThis vulnerability highlights a critical need for rigorous anti-CSRF token implementation across all sensitive web-based transaction endpoints within the Finance management interface.",
  "technicalDetails": "The vulnerability stems from the absence of robust anti-CSRF mechanisms within the Advanced Payment Management component of SAP S/4HANA Finance. CSRF, or session riding, occurs when a web application fails to verify the authenticity of a request source, relying solely on ambient authority such as session cookies or browser-stored credentials.\nIn this context, the application fails to validate the origin of incoming state-changing HTTP requests. Because browsers automatically include ambient credentials—such as session tokens—with requests to the domain hosting the SAP S/4HANA instance, an attacker can coerce a victim's browser into executing unauthorized operations by embedding forged requests within a third-party site.\nThe attack flow begins when an attacker identifies a sensitive function within the Advanced Payment Management module that lacks appropriate CSRF protection, such as a token check or SameSite cookie attribute configuration. The attacker then constructs a malicious payload, often disguised as an image tag, an invisible form, or an asynchronous fetch request triggered upon document load.\nThe attacker baits an authenticated user into visiting this malicious content. Upon execution, the browser dispatches a request to the target SAP S/4HANA endpoint. Because the user maintains an active session, the server validates the session cookies and processes the request as if it were a legitimate user-initiated action. This allows the attacker to execute unintended operations without the victim's knowledge or consent.\nThe vulnerability is restricted by the necessity of victim authentication and the requirement that the victim must interact with the malicious external entity. While the impact is limited regarding system availability, the compromise of integrity and confidentiality is achieved by manipulating financial transaction states or accessing sensitive data streams managed by the application. The scope of the impact is defined by the privileges held by the victimized user, though the vulnerability is exploitable by attackers with low-level privileges, effectively escalating their ability to influence application state through an intermediary user."
}