CVE-2026-116211: YesWiki 4.5.0 before 4.7.0 SQL Injection via date_maj_fiche in Bazar entry create

Severity: high (CVSS 8.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-25 · updated 2026-10-29
Weakness: CWE-89

Description

YesWiki 4.5.0 before 4.7.0 contains an SQL injection vulnerability in PageManager::save(), where the date_maj_fiche field of a Bazar entry-creation request is concatenated unescaped into an INSERT statement. Unauthenticated attackers on default installs can inject a sub-SELECT against wiki_users to exfiltrate password hashes.

Affected products

yeswiki: from 4.5.0 before 4.7.0 — fixed in 4.7.0

How to fix

Upgrade to a fixed version: yeswiki 4.7.0. Check the vendor advisory for mitigations.

References

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wjf7-hrf3-9gcx
https://www.vulncheck.com/advisories/yeswiki-4.5.0-before-4.7.0-sql-injection-via-date-maj-fiche-in-bazar-entry-create
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wjf7-hrf3-9gcx

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