CVE-2026-105809 SourceCodester Simple Student Information System Profile Field register.php cross site scripting

Medium 5.3 Published Updated

Remote attackers can inject malicious scripts via profile fields in the Simple Student Information 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-2026-105809?

CVE-2026-105809 is a medium-severity cross-site scripting vulnerability in SourceCodester Simple Student Information System, published on 6 Oct 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 identified in SourceCodester Simple Student Information System 1.0. This issue affects some unknown processing of the file /register.php of the component Profile Field Handler. The manipulation of the argument firstname/lastname leads to cross site scripting. The attack may be initiated remotely. The exploit is publicly available and might be used.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-105809?

How do I fix CVE-2026-105809?

No fix has been published for CVE-2026-105809 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-2026-105809 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105809 exists.

Sources

Also known as GHSA-g5vg-pcwm-f3v8.

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