CVE-2026-119428: phpmyadmin phpmyadmin

CVSS 6.3 (medium) · published 2026-10-30

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 products (NVD): phpmyadmin phpmyadmin

Weakness: CWE-918

Source: NVD CVE-2026-119428

References

• https://abraxaslabs.tech/research/phpmyadmin-setup-validate
• https://github.com/phpmyadmin/phpmyadmin
• https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Config/Validator.php#L241
• https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/setup/validate.php#L21-L35
• https://github.com/phpmyadmin/phpmyadmin/commit/126ac3ac5662ed3171ef3646636348fad3f8e952
• https://github.com/phpmyadmin/phpmyadmin/commit/510e442593af5d4702bbb46cdb45ad51f3a8a9d3
• https://github.com/phpmyadmin/phpmyadmin/pull/19156
• https://www.vulncheck.com/advisories/phpmyadmin-through-5.2.3-ssrf-via-setup-validate-php-after-setup-disabled
• https://abraxaslabs.tech/research/phpmyadmin-setup-validate

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