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.
Metrics
Affected Vendors & Products
References
History
Mon, 11 May 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Electerm
Electerm electerm |
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| Vendors & Products |
Electerm
Electerm electerm |
Fri, 08 May 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Electerm Project
Electerm Project electerm |
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| 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 |
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| Metrics |
ssvc
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Fri, 08 May 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
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| 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 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-08T12:52:47.567Z
Reserved: 2026-05-04T16:59:09.089Z
Link: CVE-2026-43940
Updated: 2026-05-08T12:52:43.836Z
Status : Analyzed
Published: 2026-05-08T04:16:23.023
Modified: 2026-05-08T19:17:53.237
Link: CVE-2026-43940
No data.