CVE-2023-6673 Reflected XSS in National Keep's CyberMath

Medium 6.1 Published 2 Feb 2024 Updated 20 May 2026

Attackers can execute arbitrary scripts in users' browsers via reflected XSS in CyberMath, potentially leading to session hijacking or data theft.

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-2023-6673?

CVE-2023-6673 is a medium-severity cross-site scripting vulnerability in National Keep Cyber Security Services CyberMath, published on 2 Feb 2024. 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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in National Keep Cyber Security Services CyberMath allows Reflected XSS.

This issue affects CyberMath: from v.1.4 before v.1.5.

Weakness: CWE-79

Which versions are affected by CVE-2023-6673?

It affects 1 product.

Products include Nationalkeep Cybermath.

How do I fix CVE-2023-6673?

No fix has been published for CVE-2023-6673 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-2023-6673 being exploited?

There is no known exploitation of CVE-2023-6673 in the wild and no public exploit code.

Sources

Also known as GHSA-q45w-f72f-v464.