What’s Vulnerable › Vulnerabilities
CVE-2026-4208: Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-17 · updated 2026-06-17
- Weakness: CWE-639
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 products
- TYPO3 Extension "E-Mail MFA Provider": before 1.0.7; 2.0.0 — fixed in 1.0.7
How to fix
Upgrade to a fixed version: TYPO3 Extension "E-Mail MFA Provider" 1.0.7. Check the vendor advisory for mitigations.
References
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