CVE-2025-12121

High

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.

SeverityHigh
CVSS7.3
Exploit probability—
ProductLite-xl Lite Xl
PublishedNov 20, 2025
First seenNov 20, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
lite-xl lite_xlv ≤ 2.1.8—

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