by Kastro
Paper/Archive/CVE-2026-93985

CVE-2026-93985

Openpanel-dev openpanel — OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE

EPSS 0.7%public exploitCVSS 9.9
critical.is priorityof 100
50
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 51.7.517 × 2010.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member access to constructor chains. Attackers with project write access can create webhook templates using computed property notation to access Function constructor and execute arbitrary code in the worker process.

Affected

ProductAffectedFixed inSource
openpanel≤ 2.3.0–CNA

Scores by source

VulnCheck (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
VulnCheck (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5writeupvulncheck.com/advisories/openpanel-js-runtime-javascript-template-sandbox-escape-rce