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A leak of PHP2Shell tools reveals two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, allowing remote code execution on web servers. The flaws carry a CVSS v4.0 score of 9.2 and affect internet-facing servers running PHP as an Apache module. Exploitation attempts are already observed in the wild, prompting organizations to upgrade to patched versions like 8.5.12 or 8.4.27 immediately.
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Summary by ByteBrief
PHP2Shell Flaws Leak Before Patch Date

PHP discloses a critical memory-management vulnerability, dubbed "PHP2Shell", that affects up to 70% of websites, discovered using GPT-5.6 Sol in August (Robert McMillan/Wall Street Journal)
PHP Patches Released After Leak