High 8.8Published Jul 12, 2026

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

Updated under an hour ago (Oct 26, 2026, 8:40 PM ET)

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It affects openwrt luci. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

openwrt luci openwrt:luci (from the name)	before 24.10.8; from 25.12.0 before 25.12.5	CNA record

References

References

https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89	vendor-advisory
https://www.vulncheck.com/advisories/luci-app-upnp-stored-xss-via-upnp-port-mapping-description	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.