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Netcore NR255-V CVE-2026-76872

| EUVDEUVD-2026-80044 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-09-15 disclosure@vulncheck.com GHSA-xrr8-q5hh-wh9p
5.1
CVSS 4.0 · Vendor: vulncheck
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Severity by source

Vendor (vulncheck) PRIMARY
5.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (vulncheck) · only source for this CVE.

CVSS VectorVendor: vulncheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
P
Scope
X

Lifecycle Timeline

1
Analysis Generated
Sep 15, 2026 - 22:34 vuln.today

DescriptionCVE.org

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.'

AnalysisAI

Stored cross-site scripting in the Netcore NR255-V router (firmware 1.5.130703) lets a user with access to the web management interface persist malicious JavaScript into DHCP static IP reservations and IP ACL entries via the dhcp_add_staticip_cgi, dhcp_staticip_show_cgi, ip_acl_set_cgi and ip_acl_show_cgi handlers. The injected script is stored on the device and executes in the browser of any other user — typically a higher-privileged administrator — who opens the affected DHCP or ACL pages, enabling session theft or unauthorised configuration changes performed as that victim. …

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CVE-2026-76872 vulnerability details – vuln.today

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