Nexting pinclaw OpenClaw channel plugin through 0.3.0 contains a missing authentication vulnerability in src/core/http-router.ts that skips the authToken check on POST /pinclaw/send. Unauthenticated attackers reaching port 18790, which binds all interfaces by default, can inject blind prompts into the user's main OpenClaw agent session as user instructions.
Attack Parameters
Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/Nexting-ai/nexting/blob/a4b75f0429d3b1bf35eef68a296b2e72aa9c…
disclosure@vulncheck.com
https://github.com/Nexting-ai/nexting/blob/a4b75f0429d3b1bf35eef68a296b2e72aa9c…
disclosure@vulncheck.com
https://hackmd.io/@haind/nexting-pinclaw-send-unauth-agent-injection
disclosure@vulncheck.com
https://www.npmjs.com/package/pinclaw
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/nexting-pinclaw-through-0.3.0-missing-auth…
disclosure@vulncheck.com