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CVE-2026-30954— LinkAce has a Cross-User Tag/List Attachment IDOR in processTaxonomy()

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 2.1.0及之前版本存在安全漏洞，该漏洞源于processTaxonomy方法授权不当，可能导致用户私有标签和列表被错误关联。

AI Predicted 7.5 Difficulty: Easy EPSS 0.28% · P18
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I. Basic Information for CVE-2026-30954

Vulnerability Information
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Vulnerability Title
LinkAce has a Cross-User Tag/List Attachment IDOR in processTaxonomy()
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. In 2.1.0 and earlier, the processTaxonomy() method in LinkRepository.php allows authenticated users to attach other users' private tags and lists to their own links by passing integer IDs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
LinkAce 安全漏洞
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 2.1.0及之前版本存在安全漏洞，该漏洞源于processTaxonomy方法授权不当，可能导致用户私有标签和列表被错误关联。
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 <= 2.1.0 -

II. Public POCs for CVE-2026-30954

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III. Intelligence Information for CVE-2026-30954

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Vendor Advisories for CVE-2026-30954 (1)

IV. Related Vulnerabilities

Same product: LinkAce
Same vendor: Kovah
Same weakness: CWE-639

V. Comments for CVE-2026-30954

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