CVE-2026-3763 code-projects Simple Flight Ticket Booking System showhistory.php cross site scripting

Medium 5.3 Published 8 Mar 2026 Updated 10 Mar 2026

Remote attackers can inject malicious scripts via the showhistory.php file in the Simple Flight Ticket Booking System, potentially compromising user sessions.

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-2026-3763?

CVE-2026-3763 is a medium-severity cross-site scripting vulnerability in code-projects Simple Flight Ticket Booking System, published on 8 Mar 2026. 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

A vulnerability was found in code-projects Simple Flight Ticket Booking System 1.0. The affected element is an unknown function of the file showhistory.php. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-3763?

It affects 1 product.

Products include Carmelo Simple Flight Ticket Booking System.

How do I fix CVE-2026-3763?

No fix has been published for CVE-2026-3763 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-2026-3763 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3763 exists.

Sources

Also known as GHSA-h6h8-r6j7-hhxp.