CVE-2026-119429
phpMyAdmin through 5.2.3 Two-Factor Authentication Removal via /config/set
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-620 |
| Vendor | phpmyadmin |
| Product | phpmyadmin |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
phpMyAdmin / phpMyAdmin
0 ≤ 5.2.3
References
github.com: https://github.com/phpmyadmin/phpmyadmin/commit/b2a3e41f1e9ce42d1ee3f07a91f476029987799f github.com: https://github.com/phpmyadmin/phpmyadmin/commit/6482dfa28bd56d515f482b008b194a516646fe1b github.com: https://github.com/phpmyadmin/phpmyadmin/pull/19087 github.com: https://github.com/phpmyadmin/phpmyadmin/blob/RELEASE_5_2_3/libraries/classes/Controllers/Config/SetConfigController.php#L29-L41 abraxaslabs.tech: https://abraxaslabs.tech/research/phpmyadmin-config-set-2fa github.com: https://github.com/phpmyadmin/phpmyadmin vulncheck.com: https://www.vulncheck.com/advisories/phpmyadmin-through-5.2.3-two-factor-authentication-removal-via-config-set
Credits
Abraxas Labs Maurício Meneghini Fauth