CVE-2021-27601: SAP NetWeaver Application Server Java

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

SAP NetWeaver AS Java (Applications based on HTMLB for Java) allows a basic-level authorized attacker to store a malicious file on the server. When a victim tries to open this file, it results in a Cross-Site Scripting (XSS) vulnerability and the attacker can read and modify data. However, the attacker does not have control over kind or degree.

Affected products

• SAP NetWeaver Application Server Java: version 7.10 only; version 7.11 only; version 7.30 only; version 7.31 only; version 7.40 only; version 7.50 only

Published 2021-04-13. Last modified 2026-06-17.