CVE-2026-61875: luci-app-upnp Stored XSS via UPnP Port Mapping

Summary

A stored cross-site scripting vulnerability exists in luci-app-upnp, allowing attackers to inject malicious code on devices that render the UPnP or Status pages. This could lead to unauthorized access or data theft. Administrators should update luci-app-upnp to the latest version to fix this issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions
openwrt	luci	All versions

Original title

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 malicio...

Original description

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.

nvd CVSS3.1 8.8

nvd CVSS4.0 8.7

Vulnerability type

CWE-79 Cross-site Scripting (XSS)