GLPI is a Free Asset and IT Management Software package. In versions 9.1.0 through 10.0.18, an unauthenticated user can send a malicious link to attempt a phishing attack from the planning feature. This is fixed in version 10.0.19.
https://github.com/glpi-project/glpi/security/advisories/GHSA-6whm-q2rp-prqm