CVE-2025-50754 Cross-site scripting in n/a

Critical 9.6 Published Updated

Stored XSS in Unisite CMS allows attackers to hijack admin sessions and execute remote code via PHP web shells.

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-2025-50754?

CVE-2025-50754 is a critical cross-site scripting vulnerability in n/a, published on 4 Aug 2025. 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

Unisite CMS version 5.0 contains a stored Cross-Site Scripting (XSS) vulnerability in the "Report" functionality. A malicious script submitted by an attacker is rendered in the admin panel when viewed by an administrator. This allows attackers to hijack the admin session and, by leveraging the template editor, upload and execute a PHP web shell on the server, leading to full remote code execution.

Weakness: CWE-79

Which versions are affected by CVE-2025-50754?

How do I fix CVE-2025-50754?

No fix has been published for CVE-2025-50754 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-2025-50754 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50754 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-w7m7-wj36-5423.

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