CVEvulnerability

CVE-2026-71858

5.4 MEDIUM Published 2026-08-17 Modified 2026-09-09 Official page ↗
Status
Awaiting Analysis
Published
2026-08-17
Last modified
2026-09-09
Assigner
[email protected]
CVSS 4.0 ([email protected])
5.4 MEDIUM — CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-345, CWE-693, CWE-78

Description

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, macros loaded from an attacker-controlled shortcuts.xml bypass the HMAC validation applied to UserDefinedCommands and can invoke Scintilla actions and the internal Open in Default Viewer command in an elevated Notepad++ process, allowing protected file modification and conditional elevated command execution when a local attacker influences settingsDir and a user triggers the macro. This issue is fixed in version 8.9.7.

Related

Weakness · CWE (3)

  • CWE-345 Insufficient Verification of Data Authenticity weakness
  • CWE-693 Protection Mechanism Failure weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References