{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3343","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","state":"PUBLISHED","assignerShortName":"WatchGuard","dateReserved":"2026-02-27T15:37:10.115Z","datePublished":"2026-03-03T13:17:48.810Z","dateUpdated":"2026-03-04T15:22:22.283Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Fireware OS","vendor":"WatchGuard","versions":[{"lessThanOrEqual":"12.11.7","status":"affected","version":"12.7","versionType":"semver"},{"lessThanOrEqual":"2026.1.1","status":"affected","version":"2025.1","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:12.7","versionEndIncluding":"12.11.7","versionStartIncluding":"12.7","vulnerable":true},{"criteria":"cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:2025.1","versionEndIncluding":"2026.1.1","versionStartIncluding":"2025.1","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","value":"btaol"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"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.<br><br><div><div>This vulnerability affects Fireware OS 12.7 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.</div></div>"}],"value":"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.\n\nThis vulnerability affects Fireware OS 12.7 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1."}],"exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"WatchGuard is not aware of any exploitation of this issue in the wild."}],"value":"WatchGuard is not aware of any exploitation of this issue in the wild."}],"impacts":[{"capecId":"CAPEC-591","descriptions":[{"lang":"en","value":"CAPEC-591 Reflected XSS"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","shortName":"WatchGuard","dateUpdated":"2026-03-04T15:22:22.283Z"},"references":[{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00004"}],"source":{"advisory":"WGSA-2026-00004","defect":["FBX-31282"],"discovery":"EXTERNAL"},"title":"WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-03T14:44:26.500886Z","id":"CVE-2026-3343","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-03T14:45:43.348Z"}}]}}