CVE-2022-36107 : Vulnerability Insights and Analysis

TYPO3 is an open source PHP-based web content management system that has been found vulnerable to cross-site scripting via the

FileDumpController

. This vulnerability allows for malicious files to trigger a cross-site scripting attack when displayed in the backend and frontend contexts. A valid backend user account is required to exploit this vulnerability. It is recommended to update TYPO3 to versions 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32, or 11.5.16 to mitigate this issue. This CVE has a CVSS base score of 6.5, categorizing it as a medium severity vulnerability.

Understanding CVE-2022-36107

This section dives into the details of the vulnerability, its impact, affected systems, and mitigation steps.

What is CVE-2022-36107?

CVE-2022-36107 refers to a stored cross-site scripting vulnerability in TYPO3's

FileDumpController

. It poses a risk when displaying malicious files and requires a valid backend user account for exploitation.

The Impact of CVE-2022-36107

The impact of this vulnerability is rated as medium severity with a CVSS base score of 6.5. It can lead to unauthorized access, data manipulation, and potentially compromise the confidentiality and integrity of the system.

Technical Details of CVE-2022-36107

Let's explore the technical aspects of the vulnerability to better understand its implications.

Vulnerability Description

The vulnerability arises from inadequate input validation in the

FileDumpController

, allowing an attacker to inject malicious scripts into the system.

Affected Systems and Versions

The affected versions range from TYPO3 7.0.0 to 11.5.16. Specifically, versions 7.6.58, 8.7.48, 9.5.37, 10.4.32, and 11.5.16 are confirmed to fix the issue.

Exploitation Mechanism

To exploit this vulnerability, an attacker needs a valid backend user account to upload and display malicious files using the

FileDumpController

component.

Mitigation and Prevention

Here are the recommended steps to address CVE-2022-36107 and prevent any security breaches.

Immediate Steps to Take

Update TYPO3 to the patched versions: 7.6.58, 8.7.48, 9.5.37, 10.4.32, or 11.5.16 to eliminate the cross-site scripting vulnerability.

Long-Term Security Practices

Implement strict input validation mechanisms, educate users on safe file handling practices, and regularly monitor for any suspicious activities within the TYPO3 system.

Patching and Updates

Stay vigilant for security advisories and updates from TYPO3 to ensure the timely application of patches that address known vulnerabilities.