TP-Link Tapo vulnerabilities

An authentication bypass vulnerability in the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 and C210 v3 stems from inconsistent parsing and authorization logic in JSON requests. An unauthenticated attacker can append an authentication-exempt action to a request containing privileged DS actions, bypassing authorization checks.

A path traversal vulnerability was identified in TP-Link Tapo C260 v1, D235 v1, C211 v2 and C520WS v2.6 within the HTTP server’s handling of GET requests. The server performs path normalization before fully decoding URL encoded input and falls back to using the raw path when normalization fails, allowing bypass of directory restrictions.

The TP-Link Tapo APK up to version 2.12.703 uses hardcoded credentials for access to the login panel. This means anyone who knows these credentials can gain unauthorized access to the application.