CVE-2026-27680: SAP NetWeaver Application Server Abap

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Due to improper input handling under certain conditions, SAP NetWeaver Application Server ABAP allows an attacker to inject custom Cascading Style Sheets (CSS) data into a web page served by the application. When a user accesses or clicks the affected page, the injected CSS is executed. As a result, the issue has a low impact on confidentiality, while integrity and availability are not impacted.

Affected products

• SAP NetWeaver Application Server Abap: version 758 only; version 816 only

Published 2026-05-14. Last modified 2026-06-17.