CVE-2026-61875

highCVSS 8.8covered by 1 sourcefirst seen 2026-07-12

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.

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Exploitation outlook

Low exploitation risk0.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-61875: luci-app-upnp contains a stored cross-site scripting vulnerability that allows unauthenticated…nvd · 2026-07-12

External references

NVD record for CVE-2026-61875

CVE.org record

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