Main Vulnerability Database Vulnerabilities #VU138322

Insufficient Type Distinction in TYPO3 - CVE-2026-15305

Published: July 17, 2026

Vulnerability identifier: #VU138322

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2026-15305

CWE-ID: CWE-351

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: TYPO3

Affected software:
TYPO3

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient type distinction in Form Framework. A remote attacker can upload files with arbitrary MIME types.

Install updates from vendor's website.