Scanner Tool Released for Exposed ReactJS and Next.js RSC Endpoints (CVE-2025-55182)
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A new security assessment tool has been released to detect exposed React Server Components (RSC) endpoints related to CVE-2025-55182. Developed by a security researcher known as Fatguru, this lightweight Python script provides a non-intrusive method for surface detection, avoiding aggressive proof-of-concept exploits. The tool aims to assist researchers and administrators in identifying vulnerabilities in their applications.
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Critical RCE Vulnerability in Meta React Server Components Discovered CVE-2025-55182 is a critical remote code execution vulnerability in Meta React Server Components, with a CVSS score of 10.0. It allows unauthenticated attackers to execute arbitrary commands on the server by sending crafted JSON payloads. This vulnerability was added to CISA's Known Exploited Vulnerabilities catalog…