CVE-2026-76872 Netcore NR255-V 1.5.130703 Stored Cross-Site Scripting via DHCP/ACL Management Pages
Attackers can inject persistent malicious scripts into the web management interface of Netcore NR255-V routers via DHCP and ACL pages, compromising other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-76872?
CVE-2026-76872 is a medium-severity cross-site scripting vulnerability in Netcore NR255-V, published on 15 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Netcore NR255-V version 1.5.130703 contains a stored cross-site scripting vulnerability in DHCP static IP and IP ACL management pages, including dhcp_add_staticip_cgi, dhcp_staticip_show_cgi, ip_acl_set_cgi, and ip_acl_show_cgi. Attackers can inject persistent malicious scripts through these components to compromise the web management interface for other users.'
Weakness: CWE-79
Which versions are affected by CVE-2026-76872?
How do I fix CVE-2026-76872?
No fix has been published for CVE-2026-76872 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-2026-76872 being exploited?
There is no known exploitation of CVE-2026-76872 in the wild and no public exploit code.
Sources
Also known as GHSA-xrr8-q5hh-wh9p.