Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the <GUIConfig name="commandLineInterpreter"> tag in config.xml is read by NppXml::value() (Parameters.cpp:6430) and stored in _nppGUI._commandLineInterpreter without any validation, whitelist, or digital signature check. When the user triggers IDM_FILE_OPEN_CMD (File → Open Containing Folder → cmd), NppCommands.cpp:228 creates a Command object with this value and calls run(), which invokes ShellExecute (RunDlg.cpp:221) with the attacker-controlled string as the executable path. This vulnerability is fixed in 8.9.6.1.
Advisories

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Fixes

Solution

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Workaround

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History

Mon, 29 Jun 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Notepad-plus-plus
Notepad-plus-plus notepad++
Vendors & Products Notepad-plus-plus
Notepad-plus-plus notepad++

Mon, 29 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 26 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Description Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the <GUIConfig name="commandLineInterpreter"> tag in config.xml is read by NppXml::value() (Parameters.cpp:6430) and stored in _nppGUI._commandLineInterpreter without any validation, whitelist, or digital signature check. When the user triggers IDM_FILE_OPEN_CMD (File → Open Containing Folder → cmd), NppCommands.cpp:228 creates a Command object with this value and calls run(), which invokes ShellExecute (RunDlg.cpp:221) with the attacker-controlled string as the executable path. This vulnerability is fixed in 8.9.6.1.
Title Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-29T13:11:06.515Z

Reserved: 2026-05-22T20:18:20.365Z

Link: CVE-2026-48778

cve-icon Vulnrichment

Updated: 2026-06-29T13:10:29.731Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-26T21:16:34.167

Modified: 2026-06-29T21:22:02.437

Link: CVE-2026-48778

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-29T19:45:02Z

Weaknesses