Vulnerability · Published Mar 10, 2026 · Assigned by GitHub_M
CVE-2026-30954LinkAce has a Cross-User Tag/List Attachment IDOR in processTaxonomy()
Medium 5.3
In plain English
A medium-severity authorization bypass via user-controlled key in LinkAce from Kovah. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.2%top 85.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-639 · Vector: 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
References
- https://github.com/Kovah/LinkAce/security/advisories/GHSA-vc99-cgj6-wwxh x_refsource_CONFIRM