CVE-2021-42662

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.

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0 NVD

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

1.67% chance of exploitation in the next 30 days, 76th percentile

Published

2021-11-05

Updated

2024-08-04

Proof-of-concept exploits (4)

• http://packetstormsecurity.com/files/164615/Online-Event-Booking-And-Reservation-System-1…
• TheHackingRabbi/CVE-2021-426622★ · 2022-03-24
• https://www.exploit-db.com/exploits/50450
• 0xDeku/CVE-2021-426622★ · 2022-03-24

Security advisories

• https://www.sourcecodester.com/php/14241/online-event-booking-and-reservation-system-phpm…

References

• CVE Record
• NVD entry

Related

• CVE-2021-42663
• CVE-2021-42664
• CVE-2021-42665
• CVE-2021-42666
• CVE-2021-42667
• CVE-2021-42668