CVE-2026-4208

Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)

Published Mar 17, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Description
The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-29r8-gvx4-r9w3 Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)
History
Type Values Removed Values Added
First Time appeared Mrsilaz
Mrsilaz mfa Mail
CPEs cpe:2.3:a:mrsilaz:mfa_mail:*:*:*:*:*:typo3:*:*
cpe:2.3:a:mrsilaz:mfa_mail:2.0.0:*:*:*:*:typo3:*:*
Vendors & Products Mrsilaz
Mrsilaz mfa Mail
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Typo3
Typo3 extension "e-mail Mfa Provider"
Vendors & Products Typo3
Typo3 extension "e-mail Mfa Provider"
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.
Title Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TYPO3
Published
Updated
Mar 24, 2026, 5:20 PM
Reserved
Mar 15, 2026, 11:55 AM
Status
Analyzed
Published
Mar 17, 2026, 9:16 AM
Modified
Jun 17, 2026, 10:56 AM