CVE-2026-48778

Description

Notepad++ allows arbitrary code execution via the commandLineInterpreter tag in config.xml. The tag value is passed to ShellExecute without validation when the user triggers File, Open Containing Folder, cmd.

Overview

State

—

Assigner (CNA)

—

CVSS severity

MEDIUM

CVSS score

5.0 / 10

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Effective score

5.0 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

2026-05-26 00:00 UTC

Last updated

—

Source

https://www.rapid7.com/db/vulnerabilities/notepad-plus-plus-cve-2026-48778/

Linked Threat

CVE-2026-48778 — CVE-2026-48778

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-06-26 21:16:34 UTC

NVD last modified

2026-06-29 21:22:02 UTC

NVD CVSS v3.1

7.8 / 10 HIGH source: security-advisories@github.com

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability subscore

1.8 / 10

Impact subscore

5.9 / 10

EPSS score

0.0131 (probability of exploitation in next 30 days)

EPSS percentile

67.88% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-78 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-39907

Assigner

GitHub_M

Published

Jun 26, 2026, 8:21:17 PM

Updated

Jun 29, 2026, 1:11:06 PM

EUVD base score (CVSS 3.1)

7.8 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EUVD-reported EPSS

1.3100

Vendors

notepad-plus-plus

Products

notepad-plus-plus (< 8.9.6.1)

ENISA 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.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://nvd.nist.gov/vuln/detail/CVE-2026-48778 tenable:nvd.nist.gov
• https://attackerkb.com/topics/CVE-2026-48778 rapid7:attackerkb.com
• https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-7hm3-wp5q-ccv9 rapid7:github.com
• https://notepad-plus-plus.org/news/v8961-released/ rapid7:notepad-plus-plus.org
• https://www.cve.org/CVERecord?id=CVE-2026-48778 rapid7:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• Rapid7 — Solution
  rapid7

  notepadplusplus-upgrade

  2026-06-04 09:01 UTC
• April 2026 Critical Patch Update Released | security - Oracle Blogs
  web:blogs.oracle.com

  For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

  2026-06-19 02:34 UTC
• CVE-2026-48778 - Overview, Insights & Trends
  web:cvemon.intruder.io

  Get the latest on CVE-2026-48778 , including risk score and recommendations. Vulnerability intelligence on trending CVEs from multiple sources.

  2026-06-19 02:34 UTC
• Nvd - Cve-2026-48777
  web:nvd.nist.gov

  An official website of the United States government Here's how you know

  2026-06-19 02:34 UTC
• Oracle CPU April 2026: Delayed RUs & First Analysis ¶
  web:oradba.ch

  On April 21, 2026 , Oracle released the Critical Patch Update (CPU) for April 2026 — 481 new security fixes across the entire Oracle product stack. For Oracle Database, this means another round of mandatory patching. What makes this quarter unusual: several key Release Updates, including 19.31 and 23.26.2, were not available on release day and are delayed by up to a week or more.

  2026-06-19 02:34 UTC
• Security Update Guide - Loading - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-06-19 02:34 UTC
• Notepad++ Fixes CVE-2026-48770 RCE Vulnerability
  web:thecyberexpress.com

  Notepad++ patches CVE-2026-48778 , CVE - 2026 -48770, and CVE - 2026 -48800 flaws that could enable RCE and command injection attacks.

  2026-06-19 02:34 UTC
• Notepad++ Vulnerabilities Allow Attackers to Execute Arbitrary Code ...
  web:threatprotect.qualys.com

  Notepad++ released a security advisory addressing three vulnerabilities, including two arbitrary code execution flaws, that could allow attackers to silently run malicious code on a victim's machine. The most critical vulnerability among the three is CVE-2026-48778 , which can lead to an arbitrary code execution issue via config.xml files. Notepad++ is a free, open-source text and source code ...

  2026-06-19 02:34 UTC
• CVE-2026-48778 - vulnerability database | Vulners.com
  web:vulners.com

  Technical details for CVE-2026-48778 are not publicly available in the provided documents. No affected products, root cause, impact, or remediation are disclosed here. Monitor for updates from official advisories.

  2026-06-19 02:34 UTC
• Microsoft Technical Security Notifications
  web:www.microsoft.com

  Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

  2026-06-19 02:34 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-06-19 02:34 UTC

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