SB2026081939 - Origin validation error in TYPO3
Published: August 19, 2026
Security Bulletin ID
SB2026081939
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Origin validation error (CVE-ID: CVE-2026-19418)
CWE-ID: CWE-346 - Origin Validation Error
CVSSv4: 7.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to broken access control in backend and Install Tool. A remote user can perform unauthorized actions with elevated privileges.
Remediation
Install update from vendor's website.