CVE-2024-9865 Cross-site scripting in EventPrime – Events Calendar, Bookings and Tickets

Medium 6.1 Published 24 Oct 2024 Updated 8 Apr 2026

Unauthenticated attackers can inject arbitrary scripts into the transaction log, leading to code execution when users view the log.

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-2024-9865?

CVE-2024-9865 is a medium-severity cross-site scripting vulnerability in metagauss EventPrime – Events Calendar, Bookings and Tickets, published on 24 Oct 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 EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘ep_booking_attendee_fields’ fields in all versions up to, and including, 4.0.4.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the transaction log for a booking.

Weakness: CWE-79

Which versions are affected by CVE-2024-9865?

It affects 1 product.

Products include Metagauss Eventprime.

How do I fix CVE-2024-9865?

No fix has been published for CVE-2024-9865 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-2024-9865 being exploited?

There is no known exploitation of CVE-2024-9865 in the wild and no public exploit code.

Sources

Also known as GHSA-j842-3w73-c63r.