{"id":"CVE-2026-67189","revision":"3b651317305f45b08076a7323d893ed5","records":[{"revision":"3b651317305f45b08076a7323d893ed5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-67189","aliases":[],"title":"pfSense Plus/CE Stored XSS via Traffic Graphs PTR Record","description":"pfSense Plus before 26.07 and pfSense CE through 2.8.1 contain a stored cross-site scripting vulnerability in the Traffic Graphs top-talkers feature, where PTR records returned by reverse DNS lookups are incorporated without sanitization into AJAX responses and rendered as HTML through a DOM sink in the administrator interface. An attacker who controls a PTR record and generates sufficient traffic to appear as a top talker can execute arbitrary JavaScript in an administrator's browser, gaining access to the authenticated session context and same-origin access to the firewall management interface, enabling account creation and arbitrary OS command execution.","state":0,"publishedAt":"2026-08-19T19:18:50.158+00:00","modifiedAt":"2026-10-01T15:20:17.101+00:00","affected":[{"ecosystem":"Vendor product","name":"pfSense Plus","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"affected\",\n                    \"vendor\": \"Netgate\",\n                    \"product\": \"pfSense Plus\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"26.07\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"pfSense CE","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"affected\",\n                    \"vendor\": \"Netgate\",\n                    \"product\": \"pfSense CE\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"2.8.1\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["https://docs.netgate.com/downloads/pfSense-SA-26_21.webgui.asc","https://docs.netgate.com/pfsense/en/latest/releases/26-07.html","https://docs.netgate.com/pfsense/en/latest/releases/2-9-0.html","https://www.vulncheck.com/advisories/pfsense-plus-ce-stored-xss-via-traffic-graphs-ptr-record"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-67189","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-67189","identifiers":["CVE-2026-67189"]},"retained":false,"historicalAffected":[]}],"coverage":[]}