CVE-2023-33758 Cross-site scripting in n/a

Medium 6.1 Published 25 Jan 2024 Updated 20 Jun 2025

Cross-site scripting in Splicecom Maximiser Soft PBX login allows attackers to inject scripts via CLIENT_NAME and DEVICE_GUID fields.

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-2023-33758?

CVE-2023-33758 is a medium-severity cross-site scripting vulnerability in n/a, published on 25 Jan 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

Splicecom Maximiser Soft PBX v1.5 and before was discovered to contain a cross-site scripting (XSS) vulnerability via the CLIENT_NAME and DEVICE_GUID fields in the login component.

Weakness: CWE-79

Which versions are affected by CVE-2023-33758?

It affects 1 product.

Products include Splicecom Maximiser Soft Pbx.

How do I fix CVE-2023-33758?

No fix has been published for CVE-2023-33758 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-2023-33758 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33758 exists.

Sources

Also known as GHSA-2g55-8535-gp6f.