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CVE-2021-42063

43
FAUCET Score

CVE-2021-42063 is a Cross-Site Scripting (XSS) vulnerability affecting SAP Knowledge Warehouse versions 7.30, 7.31, 7.40, and 7.50. This medium-severity vulnerability, with a CVSS score of 6.1, allows unauthenticated attackers to execute XSS attacks via a web browser, potentially leading to the disclosure of sensitive data and limited integrity impact. While there is no evidence of active exploitation in the wild (not in KEV), Nuclei templates exist for detection, and the vulnerability has garnered some community discussion and media coverage, indicating awareness.

Impacted Technologies

VendorProductVersion(s)CPE
7.30CPE matchmatch criteria
cpe:2.3:a:sap:knowledge_warehouse:7.30:*:*:*:*:*:*:*
7.31CPE matchmatch criteria
cpe:2.3:a:sap:knowledge_warehouse:7.31:*:*:*:*:*:*:*
7.40CPE matchmatch criteria
cpe:2.3:a:sap:knowledge_warehouse:7.40:*:*:*:*:*:*:*
7.50CPE matchmatch criteria
cpe:2.3:a:sap:knowledge_warehouse:7.50:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
22.22%
Probability of exploitation in next 30 days
EPSS Percentile
97.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-42063 · Mar 23, 2022
This CVE's current EPSS score of 0.2222 is in the 99th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/166369/SAP-Knowledge-Warehouse-7.50-7.40-7.31-7.30-Cross-Site-Scripting.html
Third Party Advisory
seclists.org / fulldisclosure/2022/Mar/32
Mailing ListThird Party Advisory
launchpad.support.sap.com
Permissions Required
wiki.scn.sap.com / wiki/display/PSR/SAP+Security+Patch+Day+-+December+2021
Vendor Advisory