CVE-2026-54053

Many Notes: Path Traversal via ZIP import allows arbitrary file write and stored XSS in other users' vaults

Published Sep 17, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Many Notes is a Markdown note-taking web application designed for simplicity. Prior to 0.16.0, the ZIP vault import implemented in app/Actions/ProcessImportedVault.php accepts archive filenames containing parent-directory traversal segments. An authenticated user can write arbitrary files outside the importing user's vault and into other users' vaults, including overwriting existing files. Disguised SVG content can be placed in another user's vault and execute stored cross-site scripting when the victim opens that vault. This issue is fixed in version 0.16.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Brufdev
Brufdev many Notes
Vendors & Products Brufdev
Brufdev many Notes
Type Values Removed Values Added
Description Many Notes is a Markdown note-taking web application designed for simplicity. Prior to 0.16.0, the ZIP vault import implemented in app/Actions/ProcessImportedVault.php accepts archive filenames containing parent-directory traversal segments. An authenticated user can write arbitrary files outside the importing user's vault and into other users' vaults, including overwriting existing files. Disguised SVG content can be placed in another user's vault and execute stored cross-site scripting when the victim opens that vault. This issue is fixed in version 0.16.0.
Title Many Notes: Path Traversal via ZIP import allows arbitrary file write and stored XSS in other users' vaults
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 24, 2026, 8:55 PM
Reserved
Jun 11, 2026, 6:24 PM
Status
Deferred
Published
Sep 17, 2026, 6:16 PM
Modified
Sep 30, 2026, 5:32 PM