Scope Bypass Vulnerability in YesWiki Product by YesWiki Vendor
CVE-2026-104443

7.2HIGH

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104443?

YesWiki versions prior to 4.6.7 are exposed to a scope bypass vulnerability in the triples delete API. This flaw allows any authenticated user to remove or forge arbitrary semantic triples, including the critical admins-group membership triple. By sending an empty filter to the triples delete endpoint, attackers can effectively empty the admin group, leading to a site-wide authorization lockout and potential loss of administrative access.

Affected Version(s)

yeswiki 0 < 4.6.7

yeswiki 4.6.7

References

https://github.com/YesWiki/yeswiki/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7...
third-party-advisory

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.