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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade modsecurity-crs | Feb 1, 2023 | Jul 9, 2019 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Jul 9, 2019 |
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