CVE-2019-13464: Modsecurity Owasp Modsecurity Core Rule Set

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) 3.0.2. Use of X.Filename instead of X_Filename can bypass some PHP Script Uploads rules, because PHP automatically transforms dots into underscores in certain contexts where dots are invalid.

Affected products

• Modsecurity Owasp Modsecurity Core Rule Set: version 3.0.2 only

Published 2019-07-09. Last modified 2026-06-17.