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Case File

CVE-2023-38199

CRITICAL · CVSS 9.8 EPSS 0.75% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-07-13 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-38199
Severity
CRITICAL
CVSS
9.8
EPSS
0.75%

Original NVD Description

coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.

Related CVEs

Other vulnerabilities affecting the same vendor(s)