CVE-2023-47125 : What You Need to Know

HTML Sanitizer of TYPO3 fails to handle DOM processing instructions correctly, enabling the bypassing of the cross-site scripting protection. Upgrade to versions 1.5.3 or 2.1.4 to mitigate the vulnerability.

Understanding CVE-2023-47125

This CVE involves the improper neutralization of input during web page generation, specifically crossing scripting, in HTML Sanitizer of TYPO3.

What is CVE-2023-47125?

CVE-2023-47125 highlights a vulnerability where TYPO3's HTML Sanitizer does not handle DOM processing instructions properly, leading to potential bypassing of cross-site scripting protection mechanisms.

The Impact of CVE-2023-47125

The impact of this vulnerability is medium, with a CVSS base score of 4.7. Attack complexity is high, requiring user interaction but no privileges, impacting confidentiality and integrity to a low extent without availability impact.

Technical Details of CVE-2023-47125

This section dives into the specific technical aspects related to CVE-2023-47125.

Vulnerability Description

The vulnerability arises due to the mishandling of DOM processing instructions, allowing malicious actors to bypass cross-site scripting protection.

Affected Systems and Versions

The affected systems include TYPO3's HTML Sanitizer versions prior to 1.5.3 and 2.1.4.

Exploitation Mechanism

Exploitation requires interaction from the user and occurs over the network with a changed scope.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-47125 is crucial for ensuring system security.

Immediate Steps to Take

Users are strongly advised to upgrade to HTML Sanitizer versions 1.5.3 or 2.1.4 to address this vulnerability.

Long-Term Security Practices

Implement regular security updates and practices to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and apply patches promptly to protect your system from known vulnerabilities.