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Fencer Vulns
critical 9.8

CVE-2026-46670 json

YesWiki: Unauthenticated SQL Injection

published 2026-05-22 5 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-56150 , GHSA-jwvv-qr7q-cv8j

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • packagist yeswiki/yeswiki 4.6.4
  • yeswiki yeswiki 4.6.4

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 mo ago

Exploit prediction

1.99% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template YesWiki < 4.6.4 - Unauthenticated SQL Injection nuclei detection template
  • github.com https://github.com/YesWiki/yeswiki/security/advisories/GHSA-jwvv-qr7q-cv8j referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist yeswiki/yeswiki
<4.6.4
4.6.4

Affected products

  • YesWiki yeswiki

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.