{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61876", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-10T21:54:26.760Z", "datePublished": "2026-07-12T12:07:55.788Z", "dateUpdated": "2026-07-12T12:07:55.788Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-12T12:07:55.788Z"}, "datePublic": "2026-06-27T00:00:00.000Z", "title": "LuCI DHCPv6 Lease Hostname Stored Cross-Site Scripting", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "openwrt", "product": "luci", "defaultStatus": "affected"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 9.4, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/openwrt/luci/security/advisories/GHSA-686p-p8p9-x6fh", "name": "GitHub Security Advisory (GHSA-686p-p8p9-x6fh)", "tags": ["vendor-advisory"]}, {"name": "VulnCheck Advisory: LuCI DHCPv6 Lease Hostname Stored Cross-Site Scripting", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/luci-dhcpv6-lease-hostname-stored-cross-site-scripting"}], "credits": [{"lang": "en", "value": "lujiefsi", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "luci", "source": "cna", "vendor": "openwrt"}, "product": "luci", "vendor": "openwrt"}], "created": "2026-07-12T13:30:03.861478+00:00", "updated": "2026-07-12T13:30:03.861513+00:00", "vendors": ["openwrt", "openwrt$PRODUCT$luci"]}