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CVE-2016-6629

27
FAUCET Score

CVE-2016-6629 is a critical vulnerability in phpMyAdmin versions prior to 4.6.4, 4.4.15.8, and 4.0.10.17, allowing attackers to bypass the $cfg['ArbitraryServerRegexp'] configuration directive by reusing specific cookie values. With a CVSS score of 9.8, this vulnerability presents a severe risk, enabling unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability with low attack complexity. Despite its critical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.6.0CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.0:*:*:*:*:*:*:*
4.6.1CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.1:*:*:*:*:*:*:*
4.6.2CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.2:*:*:*:*:*:*:*
4.6.3CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.6.3:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:phpmyadmin:phpmyadmin:4.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 79th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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-567r-vqj7-5cw7critical

phpMyAdmin Authentication Bypass

May 17, 2022

References

security.gentoo.org / glsa/201701-32
phpmyadmin.net / security/PMASA-2016-52
PatchVendor Advisory
securityfocus.com / bid/92493
Third Party AdvisoryVDB Entry