Critical severity · published Aug 11, 2026
CVE-2026-46670
YesWiki: Unauthenticated SQL Injection
9.8
CVSS
2%
EPSS
No
On KEV
Description
YesWiki is a wiki system written in PHP. Prior to version 4.6.4, an unauthenticated SQL injection in the Bazar form-import path (`FormManager::create()`) allows any unauthenticated visitor of a default YesWiki install to inject arbitrary SQL into an `INSERT` statement and read the full database, including `yeswiki_users.password` hashes. Version 4.6.4 fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
< 4.6.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46670
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46670
github.com
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-jwvv-qr7q-cv8j
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