CVE-2025-12121

CVE-2025-12121

Published Nov 20, 2025 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
Lite XL versions 2.1.8 and prior contain a vulnerability in the system.exec function, which allowed arbitrary command execution through unsanitized shell command construction. This function was used in project directory launching (core.lua), drag-and-drop file handling (rootview.lua), and the “open in system” command in the treeview plugin (treeview.lua). If an attacker could influence input to system.exec, they might execute arbitrary commands with the privileges of the Lite XL process.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Lite-xl
Lite-xl lite Xl
Weaknesses CWE-78
CPEs cpe:2.3:a:lite-xl:lite_xl:*:*:*:*:*:*:*:*
Vendors & Products Lite-xl
Lite-xl lite Xl
Type Values Removed Values Added
First Time appeared Lite Xl
Lite Xl lite Xl
Vendors & Products Lite Xl
Lite Xl lite Xl
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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

Type Values Removed Values Added
Description Lite XL versions 2.1.8 and prior contain a vulnerability in the system.exec function, which allowed arbitrary command execution through unsanitized shell command construction. This function was used in project directory launching (core.lua), drag-and-drop file handling (rootview.lua), and the “open in system” command in the treeview plugin (treeview.lua). If an attacker could influence input to system.exec, they might execute arbitrary commands with the privileges of the Lite XL process.
Title CVE-2025-12121
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
certcc
Published
Updated
Nov 20, 2025, 6:10 PM
Reserved
Oct 23, 2025, 6:11 PM
Status
Analyzed
Published
Nov 20, 2025, 5:15 PM
Modified
Oct 19, 2026, 1:10 PM