CVE-2026-46670 YesWiki: Unauthenticated SQL Injection
Unauthenticated attackers can inject SQL into YesWiki to read the full database, including user password hashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46670?
CVE-2026-46670 is a critical SQL injection vulnerability in yeswiki, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-89
Which versions are affected by CVE-2026-46670?
2 open source packages ship an affected version, including yeswiki/yeswiki.
| Package | Affected | Fixed in |
|---|---|---|
yeswiki/yeswiki Packagist | All versions | 4.6.4 |
yeswiki/yeswiki Packagist | All versions | 4.6.4 |
How do I fix CVE-2026-46670?
Upgrade yeswiki/yeswiki to 4.6.4 or later.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-46670 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46670 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-jwvv-qr7q-cv8j.