electerm before 5.3.15 exposes 40+ main-process functions through an unvalidated Electron IPC handler with no function-name allowlist or sender validation. Renderer-side script execution can invoke openFileWithEditor and other functions with arbitrary arguments to execute system commands in the main process.
https://github.com/electerm/electerm/security/advisories/GHSA-qc8j-6jr2-qr32
https://github.com/electerm/electerm/releases/tag/v5.3.15
https://github.com/electerm/electerm/issues/4509
https://github.com/electerm/electerm/commit/b1f880534b8ae066c5d25bbf291ca7437e052750
https://github.com/electerm/electerm/blob/v5.3.5/src/app/lib/ipc.js
Published: 2026-09-08
Updated: 2026-09-08
Base Score: 6.2
Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C
Severity: Medium
Base Score: 7.4
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: High
Base Score: 7.5
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: High