What is CVE-2021-33666?

CVE-2021-33666 is a medium-severity vulnerability in SAP Commerce Cloud, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-09.

How severe is CVE-2021-33666?

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

XSS in SAP Commerce Cloud

CVE-2021-33666

When SAP Commerce Cloud version 100, hosts a JavaScript storefront, it is vulnerable to MIME sniffing, which, in certain circumstances, could be used to facilitate an XSS attack or malware proliferation.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-06-09 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.005 (43.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

SAP Commerce Cloud — versions 100
SAP Se Commerce Cloud — versions < 100

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
launchpad.support.sap.com/ (Permissions Required, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33666?: CVE-2021-33666 is a medium-severity vulnerability in SAP Commerce Cloud, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-09.
How severe is CVE-2021-33666?: Medium severity. CVSS v3 base score is 6.1 out of 10.