CVE-2021-42063Knowledge Warehouse XSS
The usage of one SAP KW component within a Web browser enables unauthorized attackers to conduct XSS attacks, which might lead to disclose sensitive data.
Published Dec 14, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-42063 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Knowledge Warehouse (Sap).
- It is exploited in the wild, listed in Industry KEV feed since Apr 18, 2024. No public exploit code is known.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
45/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Apr 18, 2024
856 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Advisories And Exploit References
- advisoryhttp://packetstormsecurity.com/files/166369/SAP-Knowledge-Warehouse-7.50-7.40-7.31-7.30-Cross-Site-Scripting.html
- advisory20220320 [CVE-2021-42063] SAP Knowledge Warehouse <= 7.50 "SAPIrExtHelp" Reflected XSS
- advisoryhttps://wiki.scn.sap.com/wiki/display/PSR/SAP+Security+Patch+Day+-+December+2021
Description
A security vulnerability has been discovered in the SAP Knowledge Warehouse - versions 7.30, 7.31, 7.40, 7.50. The usage of one SAP KW component within a Web browser enables unauthorized attackers to conduct XSS attacks, which might lead to disclose sensitive data.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Apr 18, 2024 | n/a | Not reported |
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Knowledge WarehouseSap | 7.30, 7.31, 7.40, 7.50, < 7.30 | n/a |
Timeline
Publicly disclosed
Dec 14, 2021
Added to Industry KEV feed
Apr 18, 2024
Last updated
Nov 21, 2024
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisorypacketstormsecurity.com · SAP-Knowledge-Warehouse-7.50-7.40-7.31-7.30-Cro…
- advisory20220320 [CVE-2021-42063] SAP Knowledge Warehouse <= 7.50 "SAPIrExtHelp" Reflected XSS
- advisorywiki.scn.sap.com · SAP+Security+Patch+Day+-+December+2021
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A security vulnerability has been discovered in the SAP Knowledge Warehouse - versions 7.30, 7.31, 7.40, 7.50.
Affected: Knowledge Warehouse (Sap) versions 7.30, 7.31, 7.40, 7.50, < 7.30. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Apr 18, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2021-42063 On Your Attack Surface?
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