SAP S/4HANA Supplier invoice is vulnerable to CRLF Injection. An attacker with user-level privileges can bypass the allowlist and insert untrusted sites into the 'Trusted Sites' configuration by injecting line feed (LF) characters into application inputs. This vulnerability has a low impact on the application's integrity and no impact on confidentiality or availability.
The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.