Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
CVE-2026-4208 is a security vulnerability (CVSS 7.7). High severity vulnerability requiring prompt remediation.
Technical ContextAI
CWE-639 (Authorization Bypass (IDOR)). CVSS 7.7 indicates high severity.
RemediationAI
Monitor vendor channels for patch availability.
In TYPO3 installations with the "mediace" extension from version 7.6.2 and before version 7.6.5, it has been discovered
Server-side template injection in the TYPO3 'Powermail' extension lets an anonymous user submit Fluid template syntax th
Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.php i
Remote code execution in the TYPO3 'Content Element Selector' extension allows unauthenticated attackers to execute arbi
The frontend rendering component in TYPO3 4.5.x before 4.5.39, 4.6.x through 6.2.x before 6.2.9, and 7.x before 7.0.2, w
Cross-site scripting (XSS) vulnerability in the Backend component in TYPO3 6.2.x before 6.2.19 allows remote attackers t
TYPO3 is a free and open source Content Management Framework released under the GNU General Public License. Rated medium
TYPO3 is an open source PHP based web content management system. Rated medium severity (CVSS 6.1), this vulnerability is
TYPO3 Fluid before versions 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 and 2.6.10 is vulnerable to Cross-Site Scripting.
TYPO3 Fluid Engine (package `typo3fluid/fluid`) before versions 2.0.5, 2.1.4, 2.2.1, 2.3.5, 2.4.1, 2.5.5 or 2.6.1 is vul
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cr
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.
Same technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-12554
GHSA-29r8-gvx4-r9w3