{"id":"CVE-2026-78849","title":"Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file","summary":"Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-79"],"published":"2026-09-04","updated":"2026-09-14","sourceUpdated":"2026-09-14T14:17:09.903","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78849","references":[{"url":"https://docs.netgate.com/downloads/pfSense-SA-26_05.webgui.asc","label":"cve@mitre.org"},{"url":"https://redmine.pfsense.org/issues/16773","label":"cve@mitre.org"},{"url":"https://redmine.pfsense.org/attachments/6991","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T13:14:10.672289Z"},"epss":0.00361,"epssPercentile":0.29899,"ingestedAt":"2026-09-08T20:10:03.167Z","slug":"CVE-2026-78849","body":"## Overview\n\nCross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software versions <= 2.8.1 allows a remote attacker to execute arbitrary code via the captive_portal_status.widget.php file\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":201953,"id":"CVE-2026-78849","ts":1789399993219,"field":"exploit_available","old":"false","new":"true"},{"seq":201952,"id":"CVE-2026-78849","ts":1789399993219,"field":"cvss","old":null,"new":"5.4"},{"seq":201951,"id":"CVE-2026-78849","ts":1789399993219,"field":"severity","old":"none","new":"medium"},{"seq":200683,"id":"CVE-2026-78849","ts":1789397585358,"field":"exploit_available","old":"true","new":"false"},{"seq":200682,"id":"CVE-2026-78849","ts":1789397585358,"field":"cvss","old":"5.4","new":null},{"seq":200681,"id":"CVE-2026-78849","ts":1789397585358,"field":"severity","old":"medium","new":"none"},{"seq":200114,"id":"CVE-2026-78849","ts":1789395647073,"field":"exploit_available","old":"false","new":"true"},{"seq":200113,"id":"CVE-2026-78849","ts":1789395647073,"field":"cvss","old":null,"new":"5.4"},{"seq":200112,"id":"CVE-2026-78849","ts":1789395647073,"field":"severity","old":"none","new":"medium"}]}