CVE

CVE-2021-42663

4.3

CVSS

Description

An HTML injection vulnerability exists in Sourcecodester Online Event Booking and Reservation System in PHP/MySQL via the msg parameter to /event-management/index.php. An attacker can leverage this vulnerability in order to change the visibility of the website. Once the target user clicks on a given link he will display the content of the HTML code of the attacker's choice.

Attack Vector

Privileges Req.

User Interaction

Updated Oct 24, 2026View on NVD →

S4E scanner

mediumProduct Based Web Vulnerabilities~10 seconds

CVE-2021-42663 Scanner

CVE-2021-42663 scanner - Cross-Site Scripting (XSS) vulnerability in Sourcecodester Online Event Booking and Reservation System

Used 2.5k times · 3.4k assets checked · domain, ipv4, subdomain

Scanner page →Run scanner

Monitor this CVE on your assets

S4E maps published CVEs to scanners and forecasts the next disclosure window for your stack.

Create a free account →