{"id":"CVE-2026-85288","title":"Notepad++ is a free and open-source source code editor","summary":"Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WM_MACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback() without …","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-78","CWE-345","CWE-693"],"vendor":"notepad-plus-plus","product":"notepad-plus-plus","affected":["notepad-plus-plus < 8.9.8"],"published":"2026-09-22","updated":"2026-09-23","sourceUpdated":"2026-09-23T18:28:25.093","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85288","references":[{"url":"https://github.com/notepad-plus-plus/notepad-plus-plus/commit/4cd74cb9347b9c6caaab17d999e24fc9ed228ff7","label":"security-advisories@github.com"},{"url":"https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8","label":"security-advisories@github.com"},{"url":"https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p","label":"security-advisories@github.com"},{"url":"https://notepad-plus-plus.org/news/v898-released","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"epss":0.00121,"epssPercentile":0.0219,"ingestedAt":"2026-09-22T18:08:12.500Z","slug":"CVE-2026-85288","body":"## Overview\n\nNotepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WM_MACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback() without the validation used by command(). A tampered shortcuts.xml macro that is blocked through the Macro menu or a shortcut key can therefore execute through the multi-run dialog and invoke internal Notepad++ commands, including commands that launch external programs, in the current user context. This issue is fixed in version 8.9.8.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}