CVE-2026-54053: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in brufdev many-notes
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.
AI Analysis
Technical Summary
The many-notes application before version 0.16.0 contains a path traversal vulnerability (CWE-22) in the ZIP vault import functionality implemented in app/Actions/ProcessImportedVault.php. This flaw allows an authenticated user to craft archive filenames with parent-directory traversal segments, enabling arbitrary file writes outside the user's vault and into other users' vaults. As a result, attackers can overwrite files or inject disguised SVG files that execute stored cross-site scripting (XSS) upon vault access by victims. The issue is resolved in version 0.16.0.
Potential Impact
An authenticated attacker can exploit this vulnerability to write arbitrary files outside their own vault, including into other users' vaults. This can lead to overwriting existing files and injecting malicious SVG content that triggers stored cross-site scripting attacks when other users open their vaults. The vulnerability compromises confidentiality and integrity with high impact, but does not affect availability.
Mitigation Recommendations
Upgrade many-notes to version 0.16.0 or later, where this path traversal vulnerability is fixed. No other mitigation is required as the issue is resolved in the official update.
CVE-2026-54053: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in brufdev many-notes
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.
CVSS v3.1
Score 9.6critical
Affected software
brufdev
many-notes
pkg:github/brufdev/many-notesRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The many-notes application before version 0.16.0 contains a path traversal vulnerability (CWE-22) in the ZIP vault import functionality implemented in app/Actions/ProcessImportedVault.php. This flaw allows an authenticated user to craft archive filenames with parent-directory traversal segments, enabling arbitrary file writes outside the user's vault and into other users' vaults. As a result, attackers can overwrite files or inject disguised SVG files that execute stored cross-site scripting (XSS) upon vault access by victims. The issue is resolved in version 0.16.0.
Potential Impact
An authenticated attacker can exploit this vulnerability to write arbitrary files outside their own vault, including into other users' vaults. This can lead to overwriting existing files and injecting malicious SVG content that triggers stored cross-site scripting attacks when other users open their vaults. The vulnerability compromises confidentiality and integrity with high impact, but does not affect availability.
Mitigation Recommendations
Upgrade many-notes to version 0.16.0 or later, where this path traversal vulnerability is fixed. No other mitigation is required as the issue is resolved in the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-11T18:24:35.096Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aac242c55bf5e2cf5ad8ffa
Added to database: 09/17/2026, 17:32:28 UTC
Last enriched: 09/17/2026, 17:46:34 UTC
Last updated: 09/18/2026, 00:55:54 UTC
Views: 10
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