Caveat verdict
knowfun
knowfun-skills
An educational content generation skill using the Knowfun.io API with a declared KNOWFUN_API_KEY; creates courses, posters, games, and films via documented API endpoints.
⚠ Flagged for review — coarse, uncorroborated signal, not a confirmed exploit. Review the config yourself before installing.
Automated static analysis — not a human review. Caveat flags capabilities, not confirmed intent, and can produce false positives. Disagree with this verdict? Use Dispute below.
Findings (10)
Possible hardcoded credential
SKILL.md · code · API_KEY="kf_your_api_key_here
Pipe to python — executes piped content as Python code
examples_CN.md · code · | python3
Pipe-to-python pattern — remote code execution risk
examples_CN.md · code · curl ... | python
Uses eval() — can execute arbitrary code
CLAWHUB_VERIFICATION.md · prose · downgraded · eval(
Uses spawn() — can execute external programs
CLAWHUB_VERIFICATION.md · code · spawn(
References sudo — requests elevated privileges
INSTALLATION_CN.md · code · sudo
Accesses shell history/config
INSTALLATION_CN.md · code · ~/.zshrc
References webhook/callback URL
api-reference_CN.md · code · callbackUrl
Uses exec() — may execute shell commands
CLAWHUB_VERIFICATION.md · prose · downgraded · exec(
References child_process — can spawn system processes
knowfun.js · prose · downgraded · child_process
Why the tier is capped
Execution sink present in raw bytes (Hard Floor: class B/D/F). Final tier capped at Caution — cannot be lifted by any downgrade, example-payload opt-in, or allowlist.
Permissions & capabilities
No declared permissions — minimal attack surface.
Is this flag fair?
Thanks — recorded.