Cross Site Scripting Vulnerability in Netcore NR268 DHCP Handler
CVE-2026-108931

5.3MEDIUM

Key Information:

Vendor

Netcore

Status
Nr268
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108931?

A vulnerability has been identified in Netcore NR268 version 1.7.121109, specifically in the function eval of the dhcp_dynamicip_show.cgi file within the DHCP Handler component. This flaw allows an attacker to manipulate the Hostname argument, leading to cross site scripting attacks that can be executed remotely. The vulnerability is publicly known, and despite early notifications to the vendor, there has been no response addressing the issue.

Affected Version(s)

NR268 1.7.121109

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108931 - Proof of Concept

References

https://vuldb.com/vuln/416755
vdb-entrytechnical-description
https://vuldb.com/vuln/416755/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108931
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

nebula (VulDB User)
VulDB CNA Team
.