Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
notepad-plus-plus notepad-plus-plus — Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L N R U H H H 7.8 .0131 68.4 —
AFFECTED
Product Versions Fixed
notepad-plus-plus < 8.9.6.1 – —
TIMELINE
May 22 Reserved by GitHub_M
Jun 26 EXPLOIT PUBLISHED — CVE-2026-48778 (notepad-plus-plus). Public exploit reference added.
Jun 26 Published (CNA: GitHub_M)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| May 22, 2026 | Reserved | Reserved by GitHub_M |
| June 26, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-48778 (notepad-plus-plus). Public exploit reference added. |
| June 26, 2026 | Published | Published (CNA: GitHub_M) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| notepad-plus-plus | notepad-plus-plus | — | < 8.9.6.1 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-48778 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.