PT-2026-58888 · Notepad++ · Notepad++
CVE-2026-57233
·
Published
2026-07-15
·
Updated
2026-09-12
CVSS v3.1
8.1
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Notepad++ versions prior to 8.9.7
Description
The
decompress() function in WinGup fails to perform canonical containment validation when joining untrusted ZIP entry names to unzipDestTo. This allows a specially crafted ZIP entry, such as ../mimeTools/mimeTools.dll, to overwrite a DLL in a sibling plugin directory. Consequently, an attacker can execute arbitrary code when Notepad++ loads the affected plugin.Recommendations
Update to version 8.9.7.
Exploit
Fix
Path traversal
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Weakness Enumeration
Related Identifiers
Affected Products
Notepad++