CVE-2025-7840 Campcodes Online Movie Theater Seat Reservation System Reserve Your Seat Page index.php cross site scripting

Medium 5.1 Published 19 Jul 2025 Updated 21 Jul 2025

Attackers can inject malicious scripts via Firstname/Lastname fields in the reservation page, potentially compromising user sessions.

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-2025-7840?

CVE-2025-7840 is a medium-severity cross-site scripting vulnerability in Campcodes Online Movie Theater Seat Reservation System, published on 19 Jul 2025. 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 vulnerability was found in Campcodes Online Movie Theater Seat Reservation System 1.0. It has been classified as problematic. This affects an unknown part of the file /index.php?page=reserve of the component Reserve Your Seat Page. The manipulation of the argument Firstname/Lastname leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-7840?

It affects 1 product.

Products include Campcodes Online Movie Theater Seat Reservation System.

How do I fix CVE-2025-7840?

No fix has been published for CVE-2025-7840 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-2025-7840 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7840 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-jj5h-f25w-8hv6.