CVE-2026-48778 (GCVE-0-2026-48778)

Vulnerability from cvelistv5 – Published: 2026-06-26 20:21 – Updated: 2026-06-26 20:21
VLAI
Title
Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "notepad-plus-plus",
          "vendor": "notepad-plus-plus",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.9.6.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the \u003cGUIConfig name=\"commandLineInterpreter\"\u003e 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 \u2192 Open Containing Folder \u2192 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T20:21:17.254Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-7hm3-wp5q-ccv9",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-7hm3-wp5q-ccv9"
        },
        {
          "name": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/24c7b5c63cece76dbc8c4f2607a27ebfe22fa614",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/24c7b5c63cece76dbc8c4f2607a27ebfe22fa614"
        }
      ],
      "source": {
        "advisory": "GHSA-7hm3-wp5q-ccv9",
        "discovery": "UNKNOWN"
      },
      "title": "Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48778",
    "datePublished": "2026-06-26T20:21:17.254Z",
    "dateReserved": "2026-05-22T20:18:20.365Z",
    "dateUpdated": "2026-06-26T20:21:17.254Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-48778",
      "date": "2026-06-27",
      "epss": "0.01369",
      "percentile": "0.68445"
    }
  }
}


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