CVE-2021-20840: Saasproject Booking Package

Medium severity, CVSS 6.1. EPSS: 1.3% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in Booking Package - Appointment Booking Calendar System versions prior to 1.5.11 allows a remote attacker to inject an arbitrary script via unspecified vectors.

Affected products

• Saasproject Booking Package: before 1.5.11 (fixed in 1.5.11)

Published 2021-11-24. Last modified 2026-06-17.