CVE-2026-4208

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

State: Published
Severity: 7.7 High
Published: Mar 17, 2026
Updated: Mar 24, 2026
Reserved: Mar 15, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.7 High	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	TYPO3

Weaknesses

CWE-639

Affected Products

Product	Versions
Extension "E-Mail MFA Provider"TYPO3	1.0.5 and earlierAffected 2.0.0Affected

References

https://typo3.org/security/advisory/typo3-ext-sa-2026-007

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