CVE-2025-60503 Cross-site scripting in n/a

High 8.7 Published Updated

An authenticated attacker can execute arbitrary JavaScript in an administrator's browser via the purchase reference field, potentially leading to session hijacking.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-60503?

CVE-2025-60503 is a high-severity cross-site scripting vulnerability in n/a, published on 3 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A cross-site scripting (XSS) vulnerability exists in the administrative interface of ultimatefosters UltimatePOS 4.8 where input submitted in the purchase functionality is reflected without proper escaping in the admin log panel page in the 'reference No.' field. This flaw allows an authenticated attacker to execute arbitrary JavaScript in the context of an administrator's browser session, which could lead to session hijacking or other malicious actions.

Weakness: CWE-79

Which versions are affected by CVE-2025-60503?

It affects 1 product.

Products include Ultimatefosters Ultimatepos.

How do I fix CVE-2025-60503?

No fix has been published for CVE-2025-60503 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-2025-60503 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-60503 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-5gpc-893h-q6v2.

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