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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Tencent | BrowserSkill | ≤ 0.3.0 | — |
References
- https://github.com/Tencent/BrowserSkill/issues/273 issue-tracking
- https://github.com/Tencent/BrowserSkill/blob/cli-v0.3.0/crates/bsk-cli/src/daemon/ws.rs#L36-L57 technical-description
- VulnCheck Advisory: Tencent BrowserSkill through 0.3.0 Origin Validation Error in Local WebSocket Daemon third-party-advisory