What is CVE-2021-21489?

CVE-2021-21489 is a medium-severity vulnerability in Sap Netweaver Enterprise Portal, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-09-14.

How severe is CVE-2021-21489?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Sap Netweaver Enterprise Portal

CVE-2021-21489

SAP NetWeaver Enterprise Portal versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not sufficiently encode user related data, resulting in Stored Cross-Site Scripting (XSS) vulnerability. This would allow an attacker with administrative privileges to store a malicious script on the portal. The execution of the script content by a victim registered on the portal could compromise the confidentiality and integrity of portal content.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Sap Netweaver_enterprise_portal — versions 7.10, 7.11, 7.20
Sap Se Netweaver Enterprise Portal — versions < 7.10, < 7.11, < 7.20

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2021-21489?: CVE-2021-21489 is a medium-severity vulnerability in Sap Netweaver Enterprise Portal, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-09-14.
How severe is CVE-2021-21489?: Medium severity. CVSS v3 base score is 4.8 out of 10.