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Atomicorp WAF Rule 345220

Rule Summary

  • Rule ID: 345220
  • Status: Active
  • Alert message: Atomicorp.com WAF Rules: CVE-2025-55182 React RSC exploit detected (next-action + suspicious payload)
  • Observed CWEs: None documented
  • Revision: 2
  • Rule severity: Critical
  • Phase: 2 (request body)
  • Request surfaces: Request headers
  • Rule action: deny
  • HTTP status: 403
  • Public tags: attack-react2shell
  • Logging: log, auditlog

Description

This rule detects behavior identified by its current alert as “CVE-2025-55182 React RSC exploit detected (next-action + suspicious payload)” in the request headers. It evaluates during the request body phase and denies matching traffic with HTTP status 403.

CVEs Referenced by This Rule

The current ModSecurity rule metadata explicitly names the following CVEs. These references explain the rule author’s association; they do not claim that the rule is limited to these vulnerabilities or that this is an exhaustive coverage list.

CVE-2025-55182

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

This is a selected list of documented research observations, not an exhaustive coverage matrix. Absence of a CVE does not imply absence of protection.

No selected related public CVE research notes are currently published.