CVE-2026-48778: Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag in config.xml is read by NppXml::value() (Parameters.cpp:6430) and stored in…

PriorityP350high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EXPLOIT

EPSS

1.31%

67.1th percentile

Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the 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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
notepad-plus-plus	notepad	< 8.9.6.1	8.9.6.1
notepad-plus-plus	notepad-plus-plus	< 8.9.6.1	8.9.6.1

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