CVE-2021-36855 Cross-site scripting in Booking Ultra Pro (WordPress plugin)
An attacker can inject malicious scripts into the Booking Ultra Pro plugin via CSRF, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-36855?
CVE-2021-36855 is a medium-severity cross-site scripting vulnerability in Booking Ultra Pro (WordPress plugin), published on 30 Sep 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cross-Site Scripting (XSS) via Cross-Site Request Forgery (CSRF) vulnerability in Booking Ultra Pro plugin <= 1.1.4 at WordPress.
Which versions are affected by CVE-2021-36855?
It affects 1 product.
Products include Bookingultrapro Booking Ultra Pro Appointments Booking Calendar.
How do I fix CVE-2021-36855?
No fix has been published for CVE-2021-36855 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-2021-36855 being exploited?
There is no known exploitation of CVE-2021-36855 in the wild and no public exploit code.
Other vulnerabilities in Booking Ultra Pro (WordPress plugin)
- CVE-2023-32511 WordPress Booking Ultra Pro Plugin <= 1.1.8 is vulnerable to Cross Site Scripting (XSS)
- CVE-2021-36854 WordPress Booking Ultra Pro plugin <= 1.1.4 - Multiple Cross-Site Request Forgery (CSRF) vulnerabilities
- CVE-2022-46816 WordPress Booking Ultra Pro Plugin <= 1.1.4 is vulnerable to Cross Site Request Forgery (CSRF)
Sources
Also known as GHSA-85qp-4q9c-33vh.