CVE-2021-42662: Online Event Booking And Reservation System Project Online Event Booking And Reservation System

Medium severity, CVSS 5.4. EPSS: 1.7% chance of exploitation in the next 30 days.

A Stored Cross Site Scripting (XSS) vulnerability exists in Sourcecodester Online Event Booking and Reservation System in PHP/MySQL via the Holiday reason parameter. An attacker can leverage this vulnerability in order to run javascript commands on the web server surfers behalf, which can lead to cookie stealing and more.

Affected products

Published 2021-11-05. Last modified 2026-06-17.