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CVE-2026-50554— Note Mark: Unauthenticated disclosure of soft-deleted note metadata via deleted=true on public books in note-mark

Quick assessment

Affected
enchant97 note-mark
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Leo Spratt Note Mark是Leo Spratt个人开发者开源的一个基于网络的Markdown笔记应用程序。 Leo Spratt Note Mark 0.19.5之前版本存在安全漏洞，该漏洞源于GET /api/books/{bookID}/notes端点接受“deleted”参数，处理?deleted=true请求时使用Unscoped()绕过GORM软删除范围且未正确限制读授权，导致未经身份验证的攻击者可以枚举公共书籍中已软删除笔记的元数据。

CVSS 5.3 · Medium EPSS 0.42% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
enchant97 note-mark < 0.19.5 affected
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I. Basic Information for CVE-2026-50554

Vulnerability Information
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Vulnerability Title
Note Mark: Unauthenticated disclosure of soft-deleted note metadata via deleted=true on public books in note-mark
Source: CVE Program / CVE List V5
Vulnerability Description
Note Mark is an open-source note-taking application. Prior to version 0.19.5, GET /api/books/{bookID}/notes is an unauthenticated endpoint that accepts a "deleted" query parameter. When the request is ?deleted=true, the service runs the query with Unscoped() (bypassing GORM's soft-delete scope) but keeps the read-authorization clause as "owner_id = ? OR is_public = ?". As a result, any unauthenticated caller can enumerate the metadata of soft-deleted ("trashed") notes belonging to any public book — notes the owner explicitly deleted and expected to be removed from public view. This issue has been patched in version 0.19.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Leo Spratt Note Mark 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Leo Spratt Note Mark是Leo Spratt个人开发者开源的一个基于网络的Markdown笔记应用程序。 Leo Spratt Note Mark 0.19.5之前版本存在安全漏洞，该漏洞源于GET /api/books/{bookID}/notes端点接受“deleted”参数，处理?deleted=true请求时使用Unscoped()绕过GORM软删除范围且未正确限制读授权，导致未经身份验证的攻击者可以枚举公共书籍中已软删除笔记的元数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
enchant97 note-mark < 0.19.5 -

II. Public POCs for CVE-2026-50554

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III. Intelligence Information for CVE-2026-50554

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Patches & Fixes for CVE-2026-50554 (1)

Vendor Advisories for CVE-2026-50554 (1)

Vendor Pages for CVE-2026-50554 (1)

IV. Related Vulnerabilities

Same product: note-mark
Same vendor: enchant97
Same weakness: CWE-200