Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck

CVE-2026-119428phpMyAdmin through 5.2.3 SSRF via setup/validate.php After Setup Disabled

Low 3.7

In plain English

A low-severity server-side request forgery in phpMyAdmin from phpMyAdmin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)3.7Low

Exploit odds (30 days)0.3%top 72.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpMyAdmin through 5.2.3 contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger outbound connections via setup/validate.php, which lacks the setup-disabled guard. Attackers can POST attacker-chosen host and port values reaching Validator::testDBConnection() to open MySQL-protocol connections and probe internal ports using returned error messages.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	phpmyadmin	no fix listed	DEBIAN-CVE-2026-119428
Debian:13	phpmyadmin	no fix listed	DEBIAN-CVE-2026-119428
Debian:14	phpmyadmin	no fix listed	DEBIAN-CVE-2026-119428
Ubuntu:22.04:LTS	phpmyadmin	no fix listed	UBUNTU-CVE-2026-119428
Ubuntu:24.04:LTS	phpmyadmin	no fix listed	UBUNTU-CVE-2026-119428
Ubuntu:26.04:LTS	phpmyadmin	no fix listed	UBUNTU-CVE-2026-119428
Ubuntu:26.10	phpmyadmin	no fix listed	UBUNTU-CVE-2026-119428

Affected products (as reported)

Vendor	Product	Versions
phpMyAdmin	phpMyAdmin	0 – through 5.2.3

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/phpmyadmin/phpmyadmin/commit/510e442593af5d4702bbb46cdb45ad51f3a8a9d3 patch
https://github.com/phpmyadmin/phpmyadmin/commit/126ac3ac5662ed3171ef3646636348fad3f8e952 patch
https://github.com/phpmyadmin/phpmyadmin/pull/19156 patch, issue-tracking
https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/setup/validate.php#L21-L35 technical-description
https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Config/Validator.php#L241 technical-description
https://abraxaslabs.tech/research/phpmyadmin-setup-validate third-party-advisory
https://github.com/phpmyadmin/phpmyadmin product
VulnCheck Advisory: phpMyAdmin through 5.2.3 SSRF via setup/validate.php After Setup Disabled third-party-advisory