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CVE-2025-62721— LinkAce: Authorization Bypass Allows Unauthorized Access to All Private Links, Lists, and Tags

Quick assessment

Affected
Kovah LinkAce
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.

LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.3.1及之前版本存在访问控制错误漏洞，该漏洞源于FeedController类中经过身份验证的RSS提要端点未实施适当的授权检查，可能导致未经授权访问所有用户的链接、列表和标签。

AI Predicted 4.3 Difficulty: Easy EPSS 0.37% · P30
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I. Basic Information for CVE-2025-62721

Vulnerability Information
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Vulnerability Title
LinkAce: Authorization Bypass Allows Unauthorized Access to All Private Links, Lists, and Tags
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. In versions 2.3.1 and below, authenticated RSS feed endpoints in the FeedController class fail to implement proper authorization checks, allowing any authenticated user to access all links, lists, and tags from all users in the system, regardless of their ownership or visibility settings. This issue is fixed in version 2.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
LinkAce 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.3.1及之前版本存在访问控制错误漏洞，该漏洞源于FeedController类中经过身份验证的RSS提要端点未实施适当的授权检查，可能导致未经授权访问所有用户的链接、列表和标签。
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
Kovah LinkAce < 2.4.0 -

II. Public POCs for CVE-2025-62721

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III. Intelligence Information for CVE-2025-62721

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Patches & Fixes for CVE-2025-62721 (1)

Vendor Advisories for CVE-2025-62721 (1)

Same Patch Batch · Kovah · 2025-11-04 · 4 CVEs total

CVE-2025-62720 LinkAce: Data Exfiltration via Export Functions Allow Access to All Users' Private Links
CVE-2025-62719 LinkAce: Limited Server-Side Request Forgery (SSRF) in Keyword Fetching Functionality
CVE-2025-62722 LinkAce: Stored XSS Vulnerability in Link Title Field Through Social Media Sharing Feature

IV. Related Vulnerabilities

Same product: LinkAce
Same vendor: Kovah
Same weakness: CWE-200

V. Comments for CVE-2025-62721

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