{"id":"CVE-2026-3343","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3343","generatedAt":"2026-10-28T06:13:32.829Z","title":"A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.","description":"A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.","published":"2026-03-03T14:15:58.000Z","lastModified":"2026-08-10T17:17:34.000Z","status":"Modified","sourceIdentifier":"5d1c2695-1a31-4499-88ae-e847036fd7e3","cvss":{"version":"4.0","score":5.1,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-79"],"affected":["watchguard/fireware"],"epss":{"score":0.00214,"percentile":0.11691,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://psirt.watchguard.com/CVE-2026-3343","source":"5d1c2695-1a31-4499-88ae-e847036fd7e3"},{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00004","tags":["Vendor Advisory"],"source":"5d1c2695-1a31-4499-88ae-e847036fd7e3"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3343","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}