CVE-2026-46670
CriticalPublic exploitYesWiki: Unauthenticated SQL Injection
Published May 22, 2026 · Updated Sep 11, 2026 · Also known as GHSA-jwvv-qr7q-cv8j
Key Facts
Patch immediately- CVE-2026-46670 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting yeswiki/yeswiki (composer), yeswiki.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 2.0% probability of exploitation in the next 30 days.
- Fixed versions are available, including yeswiki/yeswiki 4.6.4.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
2.0%
Higher than 80.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-46670 brief as a PDF
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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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| yeswiki/yeswikicomposer | See advisory | 4.6.4 |
| yeswiki | >= < 4.6.4 | n/a |
Patched Releases
yeswiki/yeswiki
4.6.4
Timeline
Publicly disclosed
May 22, 2026
Last updated
Sep 11, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
FAQ
Common Questions.
YesWiki is a wiki system written in PHP.
Affected: yeswiki/yeswiki (composer); yeswiki versions >= < 4.6.4. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including yeswiki/yeswiki 4.6.4.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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