CVE-2026-76867: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Netcore NR255-V
Netcore NR255-V firmware version 1.5.130703 contains a stored cross-site scripting (XSS) vulnerability in several routing and NAT configuration CGI components. This vulnerability allows attackers to inject persistent script payloads that execute in the context of users viewing affected configuration pages. The issue affects the routing_tab_add_cgi, routing_table_list_show_cgi, route_policy_add_cgi, and route_policy_parame_show_cgi components.
AI Analysis
Technical Summary
CVE-2026-76867 is a stored cross-site scripting vulnerability in Netcore NR255-V firmware version 1.5.130703. The flaw exists in multiple CGI components related to routing and NAT configuration, allowing attackers to inject persistent malicious scripts. These scripts execute when legitimate users access the affected web interface pages, potentially leading to unauthorized actions or information disclosure within the context of the user's session.
Potential Impact
An attacker can inject persistent scripts into the affected web interface pages, which execute in the context of users who view these pages. This can lead to unauthorized actions performed on behalf of the user or theft of sensitive information accessible through the user's session. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, and limited impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the device's web interface to trusted users only and consider disabling remote management if enabled.
CVE-2026-76867: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Netcore NR255-V
Description
Netcore NR255-V firmware version 1.5.130703 contains a stored cross-site scripting (XSS) vulnerability in several routing and NAT configuration CGI components. This vulnerability allows attackers to inject persistent script payloads that execute in the context of users viewing affected configuration pages. The issue affects the routing_tab_add_cgi, routing_table_list_show_cgi, route_policy_add_cgi, and route_policy_parame_show_cgi components.
CVSS v4.0
Score 5.1medium
Affected software
Netcore
NR255-V
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76867 is a stored cross-site scripting vulnerability in Netcore NR255-V firmware version 1.5.130703. The flaw exists in multiple CGI components related to routing and NAT configuration, allowing attackers to inject persistent malicious scripts. These scripts execute when legitimate users access the affected web interface pages, potentially leading to unauthorized actions or information disclosure within the context of the user's session.
Potential Impact
An attacker can inject persistent scripts into the affected web interface pages, which execute in the context of users who view these pages. This can lead to unauthorized actions performed on behalf of the user or theft of sensitive information accessible through the user's session. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, and limited impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the device's web interface to trusted users only and consider disabling remote management if enabled.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T21:47:08.936Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9c06e55bf5e2cf56f8248
Added to database: 09/15/2026, 22:02:22 UTC
Last enriched: 09/15/2026, 22:25:20 UTC
Last updated: 09/16/2026, 03:17:58 UTC
Views: 7
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