CVE-2021-3340: Wikindx Project Wikindx

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability in many forms of Wikindx before 5.7.0 and 6.x through 6.4.0 allows remote attackers to inject arbitrary web script or HTML via the message parameter to index.php?action=initLogon or modules/admin/DELETEIMAGES.php.

Affected products

• Wikindx Project Wikindx: before 5.7.0 (fixed in 5.7.0); from 6.0.0, up to and including 6.4.0

Published 2021-02-01. Last modified 2026-06-17.