CVE-2026-76858CWE-79cross-site-scripting

CVE-2026-76858

Medium · published September 16, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
21.2
In the wild
Unconfirmed
What it is

Netcore NR255-V version 1.5.130703 contains a stored cross-site scripting vulnerability in ddns_wan_list_show.cgi caused by unsafe eval() handling of DDNS data. Attackers can inject malicious script through the DDNS configuration path, leading to persistent execution when the affected page is viewed.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
4.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00297 · 21.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-16T02:16Z
References (2)
https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-ddns-stored-xss.md · [email protected]https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stored-cross-site-scripting-via-ddns-eval-in-ddns-wan-list-show-cgi · [email protected]
EPSS history
Timeline
  • 17 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 15 SEP 21:57Z
    Netcore NR255-V 1.5.130703 Stored Cross-Site Scripting via DDNS eval() in ddns_wan_list_show.cgi
    cvelistv5