Hackers got a four-day head start on epic PHP2Shell vulnerability

Amazon Web Services reported that a critical flaw in PHP, the programming language that underpins a large portion of the web, is being actively exploited by malicious actors. The vulnerability, dubbed PHP2Shell, was discovered with the aid of artificial‑intelligence tools, and the company said attackers began attempting to leverage it four days before the information was made public. AWS noted that after the official disclosure, exploitation attempts have intensified and the threat is already being seen in production environments.

The finding highlights how quickly hacker groups can launch attacks once a vulnerability is announced, especially when a fix requires developers and administrators to update their systems. The company urged infrastructure owners to apply security patches as soon as they become available and to review their configurations to mitigate potential abuse.

This news is significant because PHP’s pervasive role in web architecture means an unpatched breach can affect millions of sites and applications, exposing sensitive data and compromising the availability of critical services. Prompt adoption of updates is essential to protect both end users and organizations from automated and targeted attacks.

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