CVE-2026-30954

LinkAce has a Cross-User Tag/List Attachment IDOR in processTaxonomy()

State: Published
Severity: 5.3 Medium
Published: Mar 10, 2026
Updated: Mar 11, 2026
Reserved: Mar 7, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	GitHub_M

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
LinkAceKovah	<= 2.1.0Affected

References

https://github.com/Kovah/LinkAce/security/advisories/GHSA-vc99-cgj6-wwxh

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