CVE-2021-42662 Cross-site scripting in n/a
Stored XSS in the Holiday reason parameter allows attackers to execute JavaScript, potentially stealing cookies and compromising user accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-42662?
CVE-2021-42662 is a medium-severity cross-site scripting vulnerability in n/a, published on 5 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2021-42662?
It affects 1 product.
Products include Online Event Booking and Reservation System Project Online Event Booking and Reservation System.
How do I fix CVE-2021-42662?
No fix has been published for CVE-2021-42662 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-42662 being exploited?
There is no known exploitation of CVE-2021-42662 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jw7x-fqhx-7gcf.