CVE-2025-70545 Cross-site scripting in n/a
Remote unauthenticated attackers can inject persistent JavaScript into the router's web interface, potentially leading to session hijacking or malicious actions.
- 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-2025-70545?
CVE-2025-70545 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Feb 2026. 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 stored cross-site scripting (XSS) vulnerability exists in the web management interface of the PPC (Belden) ONT 2K05X router running firmware v1.1.9_206L. The Common Gateway Interface (CGI) component improperly handles user-supplied input, allowing a remote, unauthenticated attacker to inject arbitrary JavaScript that is persistently stored and executed when the affected interface is accessed.
Weakness: CWE-79
Which versions are affected by CVE-2025-70545?
It affects 1 product.
Products include Belden Ppc 2k05x Firmware.
How do I fix CVE-2025-70545?
No fix has been published for CVE-2025-70545 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-2025-70545 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70545 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-m7x2-xj86-v5cr.