CVE-2026-3709 code-projects Simple Flight Ticket Booking System register.php sql injection

Medium 6.9 Published 8 Mar 2026 Updated 10 Mar 2026

Remote attackers can exploit SQL injection in the registration form to read or modify database contents.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-3709?

CVE-2026-3709 is a medium-severity SQL injection 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, with no action from the victim.

Official description

A weakness has been identified in code-projects Simple Flight Ticket Booking System 1.0. This affects an unknown function of the file /register.php. Executing a manipulation of the argument Username can lead to sql injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-89, CWE-74

Which versions are affected by CVE-2026-3709?

It affects 1 product.

Products include Carmelo Simple Flight Ticket Booking System.

How do I fix CVE-2026-3709?

No fix has been published for CVE-2026-3709 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-3709 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3709 exists.

Sources

Also known as GHSA-fjh9-gh6f-c72j.