VulnerabilityAnalyzed
CVE-2026-4208
This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.
HIGH 7.7EPSS 0.26%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 4.0
- 7.7 HIGHCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.26% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Affected
- mrsilaz/mfa mail
- Source
- f4fb688c-4412-4426-b4b8-421ecf27b14a
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-007Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.