Severity: ElevatedAction: Patch

Hundreds of websites taken offline as concern grows over two PHP vulnerabilities

The maintainers of the globally used PHP scripting language released patches for two vulnerabilities after alerting users that the bugs were severe.

Excerpt from the primary source: The Record by Recorded Future News

Who is affected

Security professionals

What you should do · Patch

Apply the vendor's security update for the affected products. Check the linked advisory for affected and fixed versions, and put internet-facing systems first.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

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Original reporting

Hundreds of websites taken offline as concern grows over two PHP vulnerabilities The Record by Recorded Future News · therecord.media · Oct 21, 2026 · Primary source
Severity: HighAction: Review

Two critical RCEs in PHP core

Cisco Talos is tracking the disclosure of two unauthenticated remote code execution (RCE) flaws in PHP core, dubbed “php2shell”, triggered by a plain HTTP request and exploitable before any application code runs, affecting every PHP build since 5.4. Based on the entities involved in the disclosure, artificial…

Severity: CriticalAction: Act nowExploitation: Widespread

PHP2Shell: Mass Exploitation Looms for Leaked Critical PHP Flaws

CISA strongly urges organizations to immediately patch the recently disclosed critical vulnerabilities in PHP, CVE-2026-109618 and CVE-2026-109619 . These vulnerabilities, known as “php2shell,” allow for unauthenticated remote code execution in PHP and affect all PHP installations serving web requests. Organizations should immediately update to PHP 8.5.12, 8.4.27, 8.3.36, or 8.2.35 to fix these vulnerabilities…

Why it matters

Attackers are exploiting this at scale, so exposed affected systems are likely to be targeted quickly.

Act now

Treat this as an emergency.

Severity: ElevatedAction: Patch

PHP warns admins of two critical flaws, emergency patches coming tomorrow

The PHP security team is warning administrators to prepare for emergency security updates tomorrow to address two critical vulnerabilities, as information about the flaws has reportedly leaked ahead of their scheduled disclosure.

Severity: ElevatedAction: Be aware

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Hundreds of websites taken offline as concern grows over two PHP vulnerabilities | CybersecurityNews.us