CVE-2023-41100 : What You Need to Know

An issue was discovered in the hcaptcha (aka hCaptcha for EXT:form) extension before 2.1.2 for TYPO3, allowing a remote user to bypass the CAPTCHA check.

Understanding CVE-2023-41100

This CVE highlights a vulnerability in the hcaptcha extension for TYPO3 that could be exploited by remote attackers.

What is CVE-2023-41100?

CVE-2023-41100 refers to a vulnerability in the hcaptcha extension for TYPO3 where it fails to check for the required captcha field in form data, enabling remote users to bypass the CAPTCHA verification.

The Impact of CVE-2023-41100

This vulnerability could lead to unauthorized access or abuse of the affected system and compromise the security of the TYPO3 application.

Technical Details of CVE-2023-41100

The technical details of CVE-2023-41100 involve the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the hcaptcha extension before version 2.1.2 for TYPO3, which does not properly validate the captcha field, allowing remote attackers to circumvent CAPTCHA checks.

Affected Systems and Versions

All versions of the hcaptcha extension prior to 2.1.2 for TYPO3 are affected by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by not submitting the required captcha field in the form data, thereby bypassing the CAPTCHA check.

Mitigation and Prevention

To address CVE-2023-41100, immediate steps should be taken to mitigate the risk and prevent further exploitation.

Immediate Steps to Take

Users are advised to update the hcaptcha extension to version 2.1.2 or newer to fix the vulnerability and ensure CAPTCHA validation.

Long-Term Security Practices

Implement strong security measures, such as regular security audits, to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates and patches released by TYPO3 to address vulnerabilities and enhance system security.