Vulnerability details
CVE-2026-61875
openwrt luci
luci-app-upnp Stored XSS via UPnP Port Mapping Description
CVSS 4.0
8.7High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| openwrt | luci | v < 24.10.8 | CVEProject cvelistV5 (CNA) |
| openwrt | luci | 25.12.0 ≤ v < 25.12.5 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-07-12
- Last updated
- 2026-09-30
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
29.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')