React2Shell: A Critical React and Next.js Flaw Is Actively Exploited
On December 3rd 2025, a new maximum CVSS software flaw affecting React (aka ReactJS), exploded onto the cybersecurity landscape. Dubbed React2Shell, CVE-2025-55182 is already actively exploited. Users are urged to verify their exposure and patch immediately if affected. React is the most popular JavaScript library for building modern web-application user interfaces (UIs) implying that the […]



