The explicitly run localhost companion can capture the primary screen and optionally upload the resulting PNG to Roblox. Unrestricted CORS and no request authentication leave /capture callable by arbitrary web origins while it is running.
Static reason
No blocking static signals were detected.
Trigger
A request to POST /capture after the user starts the server.
Impact
A malicious webpage could induce a screen capture and, if a configured API key is usable, upload it to a supplied Roblox user context.
Mechanism
PowerShell screen capture followed by optional Roblox asset upload
Rationale
The code is aligned with its documented Roblox icon-capture purpose and has no install hook or covert exfiltration. Its unauthenticated, CORS-open screen-capture endpoint nevertheless creates a concrete browser-driven risk while running.
Evidence
package.jsonREADME.mdserver.jsicons/apikey.local.ezicons_key$TMPDIR/ezicons_cap_<timestamp>.png
Network endpoints2
apis.roblox.com/assets/v1/assetsapis.roblox.com/assets/v1/${operationId}