CVE-2026-108931 Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scripting
Remote attackers can inject malicious scripts via the Hostname argument in the DHCP handler, potentially executing code or bypassing security controls.
- 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-2026-108931?
CVE-2026-108931 is a medium-severity cross-site scripting vulnerability in Netcore NR268, published on 12 Oct 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 vulnerability was found in Netcore NR268 1.7.121109. This affects the function eval of the file dhcp_dynamicip_show.cgi of the component DHCP Handler. The manipulation of the argument Hostname results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-108931?
How do I fix CVE-2026-108931?
No fix has been published for CVE-2026-108931 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-2026-108931 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108931 exists.
Sources
Also known as GHSA-8863-378g-v6qf.