CVE-2026-119429: phpmyadmin phpmyadmin

CVSS 5.3 (medium) · published 2026-10-30

phpMyAdmin through 5.2.3 contains a missing re-authentication vulnerability that allows authenticated attackers to remove two-factor authentication by posting the 2fa key to /config/set. Attackers holding a hijacked session can submit key=2fa with a null JSON value to SetConfigController, stripping 2FA so later logins require only the MySQL password.

Affected products (NVD): phpmyadmin phpmyadmin

Weakness: CWE-620

Source: NVD CVE-2026-119429

References

• https://abraxaslabs.tech/research/phpmyadmin-config-set-2fa
• https://github.com/phpmyadmin/phpmyadmin
• https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Controllers/Config/SetConfigController.php#L29-L41
• https://github.com/phpmyadmin/phpmyadmin/commit/6482dfa28bd56d515f482b008b194a516646fe1b
• https://github.com/phpmyadmin/phpmyadmin/commit/b2a3e41f1e9ce42d1ee3f07a91f476029987799f
• https://github.com/phpmyadmin/phpmyadmin/pull/19087
• https://www.vulncheck.com/advisories/phpmyadmin-through-5.2.3-two-factor-authentication-removal-via-config-set

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