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CVE-2026-40265

Note Mark has Broken Access Control on Asset Download

Published: Apr 16, 2026Updated: Apr 17, 2026 Sources: CVE List NVD
NVD MITRE
5.9CVSS
MEDIUM

Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the asset download endpoint at /api/notes/{noteID}/assets/{assetID} is registered without authentication middleware, and the backend query does not verify ownership or book visibility. An unauthenticated user who knows a valid note ID and asset ID can retrieve the full contents of private note assets without authentication, regardless of whether the associated book is public or private. This issue has been fixed in version 0.19.2.

EPSS Score
0.1%
Top 78.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-862

Affected Products

note-mark
enchant97

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/enchant97/note-mark/security/advisories/GHSA-p5w6-75f9-cc2p
github.com
https://github.com/enchant97/note-mark/commit/6593898855add151eb9965d96998b05e14c62026
github.com
https://github.com/enchant97/note-mark/releases/tag/v0.19.2
github.com

Timeline

Published
Apr 16, 2026
Last Updated
Apr 17, 2026

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