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CVE-2026-4208

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

HIGH
8.8
CVSS Score
Published: March 17, 2026 at 08:34 AM UTC
Updated: June 17, 2026 at 10:56 AM UTC
2 products affected across 2 vendorsMfa MailE-Mail MFA Provider

Using Extension "E-Mail MFA Provider" by TYPO3?

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mfa Mail· Mrsilaztypo3
95%
v < 1.0.72.0.0
E-Mail MFA Provider· TYPO3composer
60%
v ≤ 1.0.52.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://typo3.org/security/advisory/typo3-ext-sa-2026-007

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639

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