Code Injection in TYPO3 - #VU18906
Published: June 25, 2019
Vulnerability identifier: #VU18906
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: TYPO3
Affected software:
TYPO3
TYPO3
Detailed vulnerability description
The vulnerability allows a remote authenticated attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation within the backend API (ext:backend) configuration using Page TSconfig. A remote authenticated attacker with access to modify values for fields pages.TSconfig and pages.tsconfig_includes can send a specially crafted request and execute arbitrary PHP or JavaScript code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.