CVE-2021-42663

medium

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.

References

https://www.sourcecodester.com/php/14241/online-event-booking-and-reservation-system-phpmysql.html

https://github.com/TheHackingRabbi/CVE-2021-42663

Details

Source: Mitre, NVD

Published: 2021-11-05

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.03792