CVE-2026-61876
LuCI DHCPv6 Lease Hostname Stored Cross-Site Scripting
CVSS Score
8.8
EPSS Score
0.2%
EPSS Percentile
10th
LuCI versions fail to properly encode DHCPv6 lease hostnames before rendering in status tables, allowing adjacent network attackers to inject HTML markup. Attackers can send a DHCPv6 Client FQDN containing script tags that execute in the administrator's browser when viewing DHCP lease pages.
| CWE | CWE-79 |
| Vendor | openwrt |
| Product | luci |
| Published | Jul 12, 2026 |
| Last Updated | Jul 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
openwrt / luci
All versions affected References
Credits
🔍 lujiefsi