{ "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": "2026-08-10T16:27:58.515Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "shortName": "WatchGuard", "dateUpdated": "2026-08-10T16:27:58.515Z" }, "title": "WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI", "descriptions": [ { "lang": "en", "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." } ], "affected": [ { "vendor": "WatchGuard", "product": "Fireware OS", "versions": [ { "status": "affected", "version": "2025.1", "versionType": "custom", "lessThan": "2026.1.2" }, { "status": "affected", "version": "12.7", "versionType": "custom", "lessThan": "12.11.8" } ], "defaultStatus": "unaffected", "platforms": [ "Default" ] } ], "references": [ { "url": "https://psirt.watchguard.com/CVE-2026-3343", "tags": [ "vendor-advisory" ] }, { "url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00004" } ], "cpeApplicability": [ { "operator": "OR", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "2025.1", "versionEndExcluding": "2026.1.2" }, { "vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.7", "versionEndExcluding": "12.11.8" } ] } ] } ], "metrics": [ { "cvssV4_0": { "version": "4.0", "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", "baseScore": 5.1, "baseSeverity": "MEDIUM" } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-79", "type": "CWE", "cweId": "CWE-79" } ] } ], "credits": [ { "lang": "en", "value": "btaol", "type": "finder" } ], "solutions": [ { "lang": "en", "value": "Fireware OS 2026.1.2, Fireware OS 12.11.8" } ], "exploits": [ { "lang": "en", "value": "WatchGuard is not aware of any exploitation of this issue in the wild." } ], "datePublic": "2026-03-03T13:17:48.810Z" }, "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" } } ] } }