CVE-2021-27601

Name: CVE-2021-27601
Creator: NVD / NIST
Published: 2021-04-13T19:15:15.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2021-27601 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.47%

37.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Sap	Netweaver Application Server Java	7.10
Sap	Netweaver Application Server Java	7.11
Sap	Netweaver Application Server Java	7.30
Sap	Netweaver Application Server Java	7.31
Sap	Netweaver Application Server Java	7.40
Sap	Netweaver Application Server Java	7.50

References

https://launchpad.support.sap.com/#/notes/2963592Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=573801649Vendor Advisory
https://launchpad.support.sap.com/#/notes/2963592Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=573801649Vendor Advisory

Timeline

Published: Apr 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27601?

How severe is CVE-2021-27601?

CVE-2021-27601 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27601?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27601?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST