What is CVE-2021-21490?

CVE-2021-21490 is a medium-severity vulnerability in SAP Netweaver Application Server Abap, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-09.

How severe is CVE-2021-21490?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in SAP Netweaver Application Server Abap

CVE-2021-21490

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Sap Netweaver_application_server_abap — versions 75a, 75f, 700
Sap Se Netweaver As For Abap (Web Survey) — versions < 700, < 702, < 710

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cna@sap.com (Permissions Required, x_refsource_MISC, Vendor Advisory)
cna@sap.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21490?: CVE-2021-21490 is a medium-severity vulnerability in SAP Netweaver Application Server Abap, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-09.
How severe is CVE-2021-21490?: Medium severity. CVSS v3 base score is 6.1 out of 10.