Hackers Exploit PHP Flaw

Hackers probe PHP vulnerabilities as sites scramble to patch security flaws.

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Oct 21, 2026

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Hackers Exploit PHP Flaw

Hackers probe PHP vulnerabilities as sites scramble to patch security flaws.

In brief

Hackers probe PHP vulnerabilities as sites scramble to patch security flaws. Hackers have attempted to exploit two serious PHP vulnerabilities before official patches were released, prompting some websites to go offline temporarily. Originally reported by PCMAG.

Hackers probe PHP flaws

Hackers have quickly pounced on a major flaw in PHP, a scripting language used across the web, probing vulnerable sites and trying to exploit them.

Amazon detects early exploit attempt

Amazon uncovered signs that someone tried to abuse the flaw four days earlier on Saturday before the threat was publicly known.

Cybersecurity vendors spot activity

Cybersecurity vendors spot activity

A growing number of cybersecurity providers and researchers have spotted suspicious activity as the IT industry scrambles to patch two high-severity vulnerabilities in PHP.

VulnCheck sets up honeypots

VulnCheck has set up honeypots, or fake vulnerable systems, to track if hackers are targeting the PHP flaws.

Honeypots show Canadian and Dutch IPs

Two IP addresses from Canada and the Netherlands, flagged as malicious, were frequently connecting to the honeypots to probe for vulnerabilities.

Chinese IP attempts exploit

VulnCheck observed at least one attempted exploit coming from an IP address based in China that abused the first PHP flaw, CVE-2026-109618.

Exploit attempt failed

The exploit attempt failed because it tried to read the file back through a file disclosure path, but the path did not exist, so the attempt received a 404.

Amazon's earlier exploit attempt

Amazon discovered an earlier exploitation attempt dating to Oct. 17, 2026 in the company's Madpot honeypot security tool.

Amazon explains exploit origin

The exploit attempt originated from an IP address associated with a commercial anonymization network, suggesting the activity was conducted by a threat actor.

The short version

Hackers have attempted to exploit two serious PHP vulnerabilities before official patches were released, prompting some websites to go offline temporarily.

Read the original on PCMAG

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