CVE-2026-119428
phpMyAdmin through 5.2.3 SSRF via setup/validate.php After Setup Disabled
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | phpmyadmin |
| Product | phpmyadmin |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
phpMyAdmin / phpMyAdmin
0 ≤ 5.2.3
References
github.com: https://github.com/phpmyadmin/phpmyadmin/commit/510e442593af5d4702bbb46cdb45ad51f3a8a9d3 github.com: https://github.com/phpmyadmin/phpmyadmin/commit/126ac3ac5662ed3171ef3646636348fad3f8e952 github.com: https://github.com/phpmyadmin/phpmyadmin/pull/19156 github.com: https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/setup/validate.php#L21-L35 github.com: https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Config/Validator.php#L241 abraxaslabs.tech: https://abraxaslabs.tech/research/phpmyadmin-setup-validate github.com: https://github.com/phpmyadmin/phpmyadmin vulncheck.com: https://www.vulncheck.com/advisories/phpmyadmin-through-5.2.3-ssrf-via-setup-validate-php-after-setup-disabled
Credits
Abraxas Labs Maurício Meneghini Fauth