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CVE-2016-6624

21
FAUCET Score

CVE-2016-6624 describes an improper IP-based authentication enforcement vulnerability in phpMyAdmin, affecting versions 4.6.x (prior to 4.6.4), 4.4.x (prior to 4.4.15.8), and 4.0.x (prior to 4.0.10.17). This medium-severity vulnerability (CVSS 5.9) allows an unauthorized attacker to bypass IP restrictions and connect to phpMyAdmin when IPv6 is used in a proxy environment, even if their IP is not explicitly allowed. The attack vector is network-based with high attack complexity, potentially leading to high integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.0CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.2:*:*:*:*:*:*:*
4.0.3CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.3:*:*:*:*:*:*:*
4.0.4CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.02%
Probability of exploitation in next 30 days
EPSS Percentile
79.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 64th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: phpmyadmin/phpmyadminFixed in: 4.6.4
composerpatch availablevia ghsa
Product: phpmyadmin/phpmyadminFixed in: 4.4.15.8
composerpatch availablevia ghsa
Product: phpmyadmin/phpmyadminFixed in: 4.0.10.17

Vendor Advisories (1)

composerGHSA-mhxj-6vf8-mwv3medium

phpMyAdmin IPv6 and proxy server IP-based authentication rule circumvention

May 17, 2022

References

lists.debian.org / debian-lts-announce/2019/06/msg00009.html
security.gentoo.org / glsa/201701-32
phpmyadmin.net / security/PMASA-2016-47
PatchVendor Advisory
securityfocus.com / bid/92489
Third Party AdvisoryVDB Entry