Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89
- https://www.vulncheck.com/advisories/luci-app-upnp-stored-xss-via-upnp-port-mapp
- https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89
FAQ
What is CVE-2026-61875?
CVE-2026-61875 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...
How severe is CVE-2026-61875?
CVE-2026-61875 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-61875?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.