{"id":"CVE-2026-48778","aliases":["EUVD-2026-39907","GHSA-7hm3-wp5q-ccv9"],"status":"published","title":"Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter","description":"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 → 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":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0062,"percentile":0.50062,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-78"],"published":"2026-06-26T20:21:17Z","modified":"2026-10-28T10:51:50Z","exploits":[{"source":"exploitdb","id":"EDB-52606","title":"Notepad++ 8.9.6 - Arbitrary Code Execution","type":"remote","platform":"windows","date":"2026-05-30","url":"https://www.exploit-db.com/exploits/52606"},{"source":"pocgithub","id":"XK3NF4/CVE-2026-48778","title":"XK3NF4/CVE-2026-48778","date":"2026-05-30","url":"https://github.com/XK3NF4/CVE-2026-48778"},{"source":"pocgithub","id":"kavin-jindal/CVE-2026-48778-PoC","title":"kavin-jindal/CVE-2026-48778-PoC","date":"2026-05-30","url":"https://github.com/kavin-jindal/CVE-2026-48778-PoC"}],"products":[{"vendor":"notepad-plus-plus","product":"notepad-plus-plus"},{"vendor":"notepad-plus-plus","product":"notepad\\+\\+"}],"references":[{"url":"https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-7hm3-wp5q-ccv9","tags":["x_refsource_CONFIRM","exploit","Exploit","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/notepad-plus-plus/notepad-plus-plus/commit/24c7b5c63cece76dbc8c4f2607a27ebfe22fa614","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48778.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48778","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-48778","title":"Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter","description":"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 → 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.","status":"published","published":"2026-06-26T20:21:17.254Z","modified":"2026-06-29T13:11:06.515Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T13:50:49.872037Z"}],"euvd":[{"id":"EUVD-2026-39907","description":"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 → 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.","status":"published","published":"2026-06-26T20:21:17Z","modified":"2026-06-29T13:11:06Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:22.87152Z"}],"nvd":[{"id":"CVE-2026-48778","description":"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 → 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.","status":"published","published":"2026-06-26T21:16:34.167Z","modified":"2026-06-29T21:22:02.437Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:26.508751Z"}],"osv":[{"id":"CVE-2026-48778","title":"Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter","description":"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 → 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.","status":"published","published":"2026-06-26T20:21:17.254Z","modified":"2026-10-28T10:51:50.512600754Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:45:06.701612Z"}]}}