CVE-2026-85288

medium

Description

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 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.

References

https://notepad-plus-plus.org/news/v898-released

https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p

https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8

https://github.com/notepad-plus-plus/notepad-plus-plus/commit/4cd74cb9347b9c6caaab17d999e24fc9ed228ff7

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-84571

Details

Source: Mitre, NVD

Published: 2026-09-22

Updated: 2026-09-26

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.7

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

Severity: Medium

EPSS

EPSS: 0.00136