CVE-2026-61876

Summary

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.

Affected Software

Weaknesses

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

• https://github.com/openwrt/luci/security/advisories/GHSA-686p-p8p9-x6fh
• https://www.vulncheck.com/advisories/luci-dhcpv6-lease-hostname-stored-cross-site-scripting

• ←Previous
• Next→