CVSS 3.1 Score 9.8 of 10 (high)


Published Jul 13, 2023
Updated: Sep 5, 2023
CWE ID 843


CVE-2023-38199 is a vulnerability in coreruleset (OWASP ModSecurity Core Rule Set) versions up to 3.3.4 that allows attackers to bypass a Web Application Firewall (WAF) through "Content-Type confusion" between the WAF and the backend application. This vulnerability arises when the web application relies on only the last Content-Type header, and it does not detect multiple Content-Type request headers on some platforms. The affected products include various versions of coreruleset. The potential danger posed by this vulnerability is high, with a base severity rating of CRITICAL and a base score of 9.8 out of 10. To remediate this vulnerability, users should update to a version of coreruleset beyond 3.3.4 that addresses the issue.

Leverage our Vulnerability Intelligence module to secure your systems now - get detailed insights on CVE-2024-37364. Book your demo today.


Explore Beyond the CVE Basics with Recorded Future's Vulnerability Intelligence

Note: This is just a basic overview providing quick insights into CVE-2023-38199 information. Gain full access to comprehensive CVE data, risk scores, prioritization, and mitigation data through Recorded Future's Vulnerability Intelligence:
  • Prioritize with Risk-Based Scoring
  • Explore the Extensive Vulnerability Database
  • Receive Early Alerts on Emerging CVEs
  • Focus on Critical Exploitable Vulnerabilities
  • Streamline Remediation with Integration Options