CVE-2026-116211: YesWiki SQL injection in PageManager via date_maj_fiche

CVE-2026-116211 · Severity: high · CVSS 8.2 · Published 2026-10-25

YesWiki is a collaborative wiki platform that allows users to create and manage content and database entries. A SQL injection flaw in the Bazar entry-creation form allows unauthenticated attackers on default installations to inject malicious SQL and extract sensitive password hashes from the wiki_users table. An attacker can retrieve administrator credentials and gain full control of the wiki and its database.

Technologies: YesWiki. Vendors: YesWiki.

Quick answers

Is CVE-2026-116211 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116211 being exploited in the wild.
How severe is CVE-2026-116211?
High severity, with a CVSS score of 8.2, published 25 October 2026.
Which products and versions are affected?
YesWiki 4.5.0 before 4.7.0.
Is there a fix for CVE-2026-116211?
Yes: fixed in 4.7.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116211 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-116211?
Check whether you run YesWiki at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 4.7.0

Technical details

The vulnerability exists in PageManager::save() where the attacker-controlled date_maj_fiche parameter is concatenated unescaped into a MySQL INSERT statement, unlike all sibling column values which are properly escaped via mysqli_real_escape_string(). An unauthenticated attacker can break out of the quoted time literal by injecting a double-quote and supply a sub-SELECT to exfiltrate password hashes from wiki_users, or perform blind time-based SQL injection. The default configuration (bazarIgnoreAcls:true, use_captcha:false) allows exploitation via the public Bazar entry form without authentication.

Affected products

  • YesWiki YesWiki 4.5.0 before 4.7.0

Timeline

  • 2026-10-09: disclosed
  • 2026-10-25: advisory

References

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