CVE-2024-5859 Appointment Booking and Online Scheduling <= 4.4.2 - Reflected Cross-Site Scripting

Q: What is CVE-2024-5859?

CVE-2024-5859 is a medium-severity cross-site scripting vulnerability in Online Booking & Scheduling Calendar for WordPress by vcita, published on 21 Jun 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Q: Is CVE-2024-5859 being exploited?

There is no known exploitation of CVE-2024-5859 in the wild and no public exploit code.

Q: How do I fix CVE-2024-5859?

No fix has been published for CVE-2024-5859 yet. Limit exposure of the affected software until one is available.

Medium 6.1 Published 21 Jun 2024 Updated 8 Apr 2026

Unauthenticated attackers can inject arbitrary web scripts via the 'd' parameter, executing them in victim browsers if they click a crafted link.

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-2024-5859?

CVE-2024-5859 is a medium-severity cross-site scripting vulnerability in Online Booking & Scheduling Calendar for WordPress by vcita, published on 21 Jun 2024. 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

The Online Booking & Scheduling Calendar for WordPress by vcita plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘d’ parameter in all versions up to, and including, 4.4.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Weakness: CWE-79

Which versions are affected by CVE-2024-5859?

It affects 1 product.

Products include Vcita Online Booking \& Scheduling Calendar.

How do I fix CVE-2024-5859?

No fix has been published for CVE-2024-5859 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-2024-5859 being exploited?

There is no known exploitation of CVE-2024-5859 in the wild and no public exploit code.

Sources

Also known as GHSA-hvqv-gh9w-cp67.