PHP2Shell Security Flaws Now Successfully Exploited

The critical PHP2Shell vulnerabilities (CVE-2026-109618 and CVE-2026-109619) have now been successfully exploited in the wild, just days after patches were released and initial exploitation attempts failed. BleepingComputer reports: The malicious activity was caught by Adel Karimi, detection and response lead at Perplexity, whose honeypots recorded evidence of confirmed remote code execution against an Apache mod_php installation running PHP 8.4.26. "This is now confirmed RCE with usable memory disclosure, not just a crash followed by a suspicious process. The response delivered an 800 KiB decoded cookie dump, and a function address derived from that dump using the public exploit's offsets appears in the subsequent execution payload," Karimi shared.

"The evidence demonstrates this chain on the intentionally favorable single-worker mod_php profile; it is not a measurement of exploit reliability on other worker counts, PHP builds, or applications," he added. Karimi's findings were also confirmed by Expel threat researcher Marcus Hutchins, who has been tracking a stream of alleged successful PHP2Shell exploitation reports.