CVE-2021-40973: Spotweb Project Spotweb

Medium severity, CVSS 6.1. EPSS: 2.3% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in templates/installer/step-004.inc.php in spotweb 1.5.1 and below allow remote attackers to inject arbitrary web script or HTML via the lastname parameter.

Affected products

• Spotweb Project Spotweb: up to and including 1.5.1

Published 2021-10-01. Last modified 2026-06-17.