CVE-2026-119429
Received Received - Intake

phpMyAdmin Missing Re-authentication Bypass via SetConfigController

Publication date: 2026-10-30

Last updated on: 2026-10-30

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-10-30
Last Modified
2026-10-30
Generated
2026-10-30
AI Q&A
2026-10-30
EPSS Evaluated
N/A
NVD
CVE-2026-119429
EUVD
EUVD-2026-113809

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
phpMyAdmin phpMyAdmin 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-620 When setting a new password for a user, the product does not require knowledge of the original password, or using another form of authentication.

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Executive Summary

This vulnerability in phpMyAdmin through 5.2.3 allows authenticated attackers to remove two-factor authentication (2FA) by sending a POST request to /config/set with key=2fa and a null JSON value. This strips 2FA from an account, so future logins only require the MySQL password.

Detection Guidance

To detect this vulnerability, monitor HTTP POST requests to /config/set with parameters key=2fa and value=null. Check phpMyAdmin logs for unauthorized 2FA removal events or unexpected configuration changes. Use network traffic analysis tools like Wireshark or tcpdump to inspect requests targeting the /config/set endpoint.

Impact Analysis

If exploited, this vulnerability lets attackers bypass 2FA, gaining unauthorized access to phpMyAdmin accounts with just a password. Attackers need a valid session but can use CSRF or XSS vectors to trigger the exploit remotely.

Mitigation Strategies

Immediately upgrade phpMyAdmin to a patched version beyond 5.2.3. If upgrading is not possible, restrict access to the /config/set endpoint via web server rules (e.g., Apache/Nginx access controls). Disable 2FA removal functionality by modifying SetConfigController to validate 2FA settings or remove the endpoint entirely.

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