CVE-2026-40265

Note Mark has Broken Access Control on Asset Download

CVSS 5.9 MEDIUMEPSS 0.4%CWE-862

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

16 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

enchant97 · note-mark

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References

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