CVE-2026-62853

Summary

The ThingLinks IoT platform's `/groovyScriptTest/registerScript` endpoint allows authenticated users to submit Groovy scripts that are compiled and executed unsandboxed on the server, leading to remote code execution (RCE) due to lack of input sanitization and sandboxing.

Exploitability

Exploitation requires valid authentication but no additional privileges or user interaction; it is straightforward for an authenticated attacker.

Blast radius

Successful exploitation grants full server compromise, enabling data theft, system manipulation, and lateral movement within the IoT infrastructure.

Detection

Monitor for requests to `/groovyScriptTest/registerScript` containing Groovy syntax (e.g., `import`, `new`, class definitions) in POST bodies; such activity is anomalous for a test endpoint and may indicate exploitation attempts.

Prioritized remediation

Upgrade to ThingLinks version 1.4.0 or later, which patches the vulnerability by sandboxing Groovy script execution.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.