OpenPanel before 3.0.0 Sandbox Escape RCE via Webhook JavaScript Template

Summary

OpenPanel before 3.0.0 contains a sandbox escape vulnerability in the js-runtime validator that allows a project member to bypass the AST allowlist by aliasing the Function constructor. Attackers with write access can read payload.constructor.constructor into a local and call it to run arbitrary code in the worker process.

Remediation

1. Inventory every Openpanel-dev openpanel deployment, including staging.
2. Upgrade Openpanel-dev openpanel to 3.0.0.
3. Confirm the running version after the upgrade.

References

• Patchhttps://github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81
• Advisoryhttps://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq
• Advisoryhttps://www.vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webhook-javascript-template