CVE-2026-40265CWE-862

Note Mark has Broken Access Control on Asset Download

Medium · published April 16, 2026

CVSS v3.1
5.9
EPSS
1%
Percentile
42.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00502 · 42.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-04-16T23:56Z
EPSS history
Timeline
  • 16 APR 23:56Z
    Note Mark has Broken Access Control on Asset Download
    cvelistv5