CVE-2026-3302 SourceCodester Doctor Appointment System Sign Up register.php cross site scripting

Medium 5.3 Published Updated

Remote attackers can inject malicious scripts via the Email field in the Sign Up page, potentially compromising user sessions or executing code.

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-2026-3302?

CVE-2026-3302 is a medium-severity cross-site scripting vulnerability in SourceCodester Doctor Appointment System, published on 27 Feb 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 weakness has been identified in SourceCodester Doctor Appointment System 1.0. Affected by this issue is some unknown functionality of the file /register.php of the component Sign Up Page. Executing a manipulation of the argument Email can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-3302?

It affects 1 product.

Products include Remyandrade Doctor Appointment System.

How do I fix CVE-2026-3302?

No fix has been published for CVE-2026-3302 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-2026-3302 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3302 exists.

Sources

Also known as GHSA-3j9h-rxgh-gc62.

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