Cutting Through the php2shell Noise On October 20, details of php2shell, two pre-auth RCE vulnerabilities in the PHP core discovered by Calif (CVE-2026-109618 and CVE-2026-109619), leaked ahead of coordinated disclosure. Advisories listing affected versions followed quickly, along with a flood of PoCs, many AI-generated and non-functional. We waited until we had our own data.

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