High severity · published Oct 2, 2026
CVE-2026-104467
YesWiki before 4.6.7 Authorization Bypass via Public API Mode
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
YesWiki before 4.6.7 contains an authorization bypass vulnerability in ApiService::isAuthorized() that allows unauthenticated attackers to call admin-only API routes when public API mode is enabled. Attackers can send requests to endpoints like api/ci/update_config and api/archives to overwrite configuration and list, download, or delete backup archives.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
before 4.6.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104467
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104467
vendor-advisory
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-v527-6r4j-j2w2
third-party-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-authorization-bypass-via-public-api-mode
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