CVE-2025-55903 Cross-site scripting in n/a
Attackers can inject arbitrary HTML into estimate documents via the Bill To field, potentially executing scripts in client browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55903?
CVE-2025-55903 is a high-severity cross-site scripting vulnerability in n/a, published on 10 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A HTML injection vulnerability exists in Perfex CRM v3.3.1. The application fails to sanitize user input in the "Bill To" address field within the estimate module. As a result, arbitrary HTML can be injected and rendered unescaped in client-facing documents.
Weakness: CWE-116
Which versions are affected by CVE-2025-55903?
How do I fix CVE-2025-55903?
No fix has been published for CVE-2025-55903 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-2025-55903 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55903 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-vmj4-ffr3-xxp8.