electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.7.16, the runWidget function in src/app/widgets/load-widget.js constructs a file path by directly concatenating user‑supplied widget identifiers without any sanitisation. Because runWidget is exposed to the renderer process via an asynchronous IPC handler with no input validation, an attacker who achieves JavaScript execution inside the renderer (for example, through a malicious plugin or a cross‑site scripting flaw in the built‑in webview) can abuse a path traversal (../) to load and execute an arbitrary JavaScript file anywhere on the victim’s filesystem. This gives the attacker local code execution with the full privileges of the electerm process, leading to complete system compromise. This issue has been patched in version 3.7.16.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-f77v-9vpc-6pjm Electerm runWidget has a path traversal that leads to arbitrary code execution
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 08 May 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Electerm Project
Electerm Project electerm
CPEs cpe:2.3:a:electerm_project:electerm:*:*:*:*:*:*:*:*
Vendors & Products Electerm Project
Electerm Project electerm

Fri, 08 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 May 2026 04:00:00 +0000

Type Values Removed Values Added
Description electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.7.16, the runWidget function in src/app/widgets/load-widget.js constructs a file path by directly concatenating user‑supplied widget identifiers without any sanitisation. Because runWidget is exposed to the renderer process via an asynchronous IPC handler with no input validation, an attacker who achieves JavaScript execution inside the renderer (for example, through a malicious plugin or a cross‑site scripting flaw in the built‑in webview) can abuse a path traversal (../) to load and execute an arbitrary JavaScript file anywhere on the victim’s filesystem. This gives the attacker local code execution with the full privileges of the electerm process, leading to complete system compromise. This issue has been patched in version 3.7.16.
Title electerm: Path traversal in electerm runWidget leads to arbitrary code execution
Weaknesses CWE-22
CWE-829
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-08T12:52:47.567Z

Reserved: 2026-05-04T16:59:09.089Z

Link: CVE-2026-43940

cve-icon Vulnrichment

Updated: 2026-05-08T12:52:43.836Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-08T04:16:23.023

Modified: 2026-05-08T19:17:53.237

Link: CVE-2026-43940

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T05:30:46Z

Weaknesses