CVE-2022-40290 Reflected cross-site scripting in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC.

Medium 6.1 Published 31 Oct 2022 Updated 6 May 2025

Unauthenticated attackers can execute arbitrary scripts via reflected XSS in barcode generation, potentially compromising user sessions and data.

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-2022-40290?

CVE-2022-40290 is a medium-severity cross-site scripting vulnerability in PHP Point of Sale, published on 31 Oct 2022. 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

The application was vulnerable to an unauthenticated Reflected Cross-Site Scripting (XSS) vulnerability in the barcode generation functionality, allowing attackers to generate an unsafe link that could compromise users.

Weakness: CWE-79

Which versions are affected by CVE-2022-40290?

It affects 1 product.

Products include Phppointofsale Php Point of Sale.

How do I fix CVE-2022-40290?

No fix has been published for CVE-2022-40290 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-2022-40290 being exploited?

There is no known exploitation of CVE-2022-40290 in the wild and no public exploit code.

Sources

Also known as GHSA-mc95-w48p-72ww.