CVE-2026-61875CWE-79cross-site-scripting

CVE-2026-61875

High · published July 12, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
28.4
In the wild
Unconfirmed
What it is

luci-app-upnp contains a stored cross-site scripting vulnerability that allows unauthenticated LAN clients to inject JavaScript via UPnP IGD AddPortMapping SOAP requests. Attackers can send malicious HTML in the NewPortMappingDescription field, which miniupnpd stores and luci-app-upnp renders without output encoding, executing the payload when administrators view the UPnP or Status pages.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00358 · 28.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-12T16:16Z
References (3)
https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89 · [email protected]https://www.vulncheck.com/advisories/luci-app-upnp-stored-xss-via-upnp-port-mapping-description · [email protected]https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 12 JUL 12:06Z
    luci-app-upnp Stored XSS via UPnP Port Mapping Description
    cvelistv5