426 Android and iOS Apps Linked to PHP2Shell Backend Risks

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Research found 426 mobile apps connecting to servers advertising PHP versions potentially affected by PHP2Shell vulnerabilities, raising concerns about backend security.

NowSecure has identified 426 Android and iOS apps connecting to servers that report versions of PHP (Hypertext Preprocessor), a programming language used to build websites and backend services, affected by the recently patched PHP2Shell vulnerabilities.

In research shared with Hackread.com, the cybersecurity firm urged developers to check the servers supporting their apps, including those operated by outside providers. The reported versions alone do not confirm whether a server remains unpatched or can be exploited.

PHP2Shell Flaws Raise Backend Security Concerns

The PHP project released fixes for two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, on October 21, 2026, each rated CVSS v4.0 9.2. Hackread.com reported on the emergency PHP2Shell fixes, which address flaws that can allow unauthenticated attackers to execute code on affected servers.

For context, both PHP2Shell vulnerabilities were...

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