High CVSS 8.8

Overview

Visualware MyConnection Server doRTAAccessCTConfig Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Visualware MyConnection Server. Minimal user interaction is required to exploit this vulnerability.

The specific flaw exists within the doRTAAccessCTConfig method. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-21613.

Risk analysis

This vulnerability is rated 🟠 HIGH.

  • CVSS: 8.8 (HIGH)
  • Detected tags: unauth_access, xss (tag impact: HIGH)

Recommended actions:

  • Enforce authentication/authorization; reduce default endpoint exposure.
  • Apply context-aware output encoding.
  • Enable Content-Security-Policy and HttpOnly/SameSite cookies.

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