Critical CVSS 9.1

Overview

Server-Side Request Forgery (SSRF) vulnerability exists in the URL processing functionality of PHProxy version 1.1.1 and prior. The input validation for the _proxurl parameter can be bypassed, allowing a remote, unauthenticated attacker to submit a specially crafted URL

Risk analysis

This vulnerability is rated 🔴 CRITICAL.

  • CVSS: 9.1 (CRITICAL)
  • Detected tags: ssrf, unauth_access (tag impact: HIGH)

Recommended actions:

  • Deny access to internal/metadata addresses; use outbound allowlists.
  • Enforce authentication/authorization; reduce default endpoint exposure.

Recommended tools

Tags