CVE-2021-21490

Name: CVE-2021-21490
Creator: NVD / NIST
Published: 2021-06-09T14:15:08.01+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2021-21490 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. SAP NetWeaver AS for ABAP (Web Survey), versions - 700, 702, 710, 711, 730, 731, 750, 750, 752, 75A, 75F, does not sufficiently encode input and output parameters which results in reflected cross site scripting vulnerability, through which a malicious user can access data relating to the current session and use it to impersonate a user and access all information with the same rights as the target user.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

SAP NetWeaver AS for ABAP (Web Survey), versions - 700, 702, 710, 711, 730, 731, 750, 750, 752, 75A, 75F, does not sufficiently encode input and output parameters which results in reflected cross site scripting vulnerability, through which a malicious user can access data relating to the current session and use it to impersonate a user and access all information with the same rights as the target user.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.58%

43.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Sap	Netweaver Application Server Abap	75a
Sap	Netweaver Application Server Abap	75f
Sap	Netweaver Application Server Abap	700
Sap	Netweaver Application Server Abap	702
Sap	Netweaver Application Server Abap	710
Sap	Netweaver Application Server Abap	711
Sap	Netweaver Application Server Abap	730
Sap	Netweaver Application Server Abap	731
Sap	Netweaver Application Server Abap	750
Sap	Netweaver Application Server Abap	752

References

https://launchpad.support.sap.com/#/notes/3004043Permissions Required, Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Vendor Advisory
https://launchpad.support.sap.com/#/notes/3004043Permissions Required, Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Vendor Advisory

Timeline

Published: Jun 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21490?

How severe is CVE-2021-21490?

CVE-2021-21490 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21490?

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-2021-21490?

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

Scan your code now

Source: NVD / NIST