CVE-2025-64054 Cross-site scripting in n/a
Attackers can execute arbitrary commands or cause denial of service via reflected XSS in Fanvil IP phones.
- 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-2025-64054?
CVE-2025-64054 is a critical cross-site scripting vulnerability in n/a, published on 5 Dec 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
A reflected Cross Site Scripting (XSS) vulnerability on Fanvil x210 2.12.20 devices allows attackers to cause a denial of service or potentially execute arbitrary commands via crafted POST request to the /cgi-bin/webconfig?page=upload&action=submit endpoint.
Weakness: CWE-79
Which versions are affected by CVE-2025-64054?
It affects 1 product.
Products include Fanvil X210 Firmware.
How do I fix CVE-2025-64054?
No fix has been published for CVE-2025-64054 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-2025-64054 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-64054 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-98gh-9q2q-78vj.