Arbitrary Command Execution Vulnerability in Lite XL by Lite XL

CVE-2025-12121

What is CVE-2025-12121?

Lite XL versions up to 2.1.8 have a significant vulnerability in the system.exec function, which allows attackers to execute arbitrary commands through unsanitized inputs. This vulnerability primarily affects functionalities tied to project directory launching, drag-and-drop file handling, and the 'open in system' command via the treeview plugin. If exploited, an attacker could manipulate inputs to system.exec, leading to the execution of unauthorized commands with the privileges of the Lite XL process, thereby posing serious security risks.

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