Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck
CVE-2026-104443YesWiki before 4.6.7 Scope Bypass via Triples Delete API
High 8.1
In plain English
A high-severity incorrect authorization in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 69.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
YesWiki before 4.6.7 contains an empty-filter scope bypass in the triples delete API that allows any authenticated user to delete or forge arbitrary semantic triples regardless of ownership. Attackers can send an empty filter to the triples delete endpoint to remove the admins-group membership triple, emptying the admin group and causing a site-wide authorization lockout.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
References
- GitHub Security Advisory (GHSA-9j7h-ccj2-jxv6) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 Scope Bypass via Triples Delete API third-party-advisory