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Advisories

Tencent BrowserSkill through 0.3.0 Origin Validation Error in Local WebSocket Daemon

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severity
medium
date
Affecting

  • BrowserSkill <= 0.3.0

CWE
  • CWE-346 Origin Validation Error
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
George Chen
Description
Tencent BrowserSkill through 0.3.0 contains an authentication bypass vulnerability in the local daemon WebSocket origin validation that accepts any chrome-extension origin with 32 characters in range a-p. Attackers can register a malicious extension as a browser client to intercept and manipulate page content, DOM, and screenshots returned to the AI agent.

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