Information disclosure in TYPO3 - CVE-2026-49742
Published: June 18, 2026
Vulnerability identifier: #VU134850
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-49742
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in Clipboard. A remote user can insert arbitrary records and files into the TYPO3 clipboard and gain unauthorized access to sensitive information on the system.
Affected software
TYPO3
How to mitigate CVE-2026-49742
Install updates from vendor's website.
TYPO3 - addressed in versions 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3