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CVE-2026-48778

Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter

Published: Jun 26, 2026Updated: Jun 29, 2026 Sources: CVE List NVD BDUCWE-78
7.8HIGH
NVD MITRE
EPSS Score
1.3%
Top 32.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

notepad-plus-plus
commercialaka notepad plus plus, notepad+ plus, notepad++
notepad-plus-plusOn-prem
Consumer Software / productivity
notepad\+\+On-prem
Consumer Software / productivity
Don Ho
commercial
Notepad++Mixed
Consumer Software / file-utility

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://www.acn.gov.it/portale/w/notepad-poc-pubblici-per-le-cve-2026-48800-cve-2026-48778-e-cve-2026-48770&#13;
acn.gov.it
https://notepad-plus-plus.org/news/v8961-released/&#13;
notepad-plus-plus.org
https://community.notepad-plus-plus.org/topic/27548/notepad-release-8.9.6.1&#13;
community.notepad-plus-plus.org
and 2 more references View all →
News mentions
1

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