{"id":"CVE-2026-55730","state":"PUBLISHED","title":"Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802","description":"Reflected Cross-Site Scripting (CWE-79) in LWEB802 in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser and perform actions with the victim's privileges via a crafted link containing a malicious `project` or `mspParams` parameter.","publishedAt":"2026-07-24T14:00:04.544Z","updatedAt":"2026-07-24T14:54:57.839Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"NCSC.ch"},"assigner":"NCSC.ch","products":["Loytec LWEB-802"],"affected":[{"vendor":"Loytec","product":"LWEB-802","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.0.8","versionType":"custom"}]}],"references":["https://www.loytec.com/support/product-security/advisories/8527-dibt-cve-20260601-0002-reflected-cross-site-scripting-xss-high"],"weaknesses":["CWE-79","CWE-116"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55730.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55730","state":"PUBLISHED","datePublished":"2026-07-24T14:00:04.544Z","dateUpdated":"2026-07-24T14:54:57.839Z","assignerShortName":"NCSC.ch","assignerOrgId":"455daabc-a392-441d-aa46-37d35189897c","dateReserved":"2026-06-17T09:48:05.268Z"},"containers":{"cna":{"title":"Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802","descriptions":[{"lang":"en","value":"Reflected Cross-Site Scripting (CWE-79) in LWEB802 in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser and perform actions with the victim's privileges via a crafted link containing a malicious `project` or `mspParams` parameter."}],"affected":[{"vendor":"Loytec","product":"LWEB-802","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.0.8","versionType":"custom"}]}],"references":[{"url":"https://www.loytec.com/support/product-security/advisories/8527-dibt-cve-20260601-0002-reflected-cross-site-scripting-xss-high","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116 Improper encoding or escaping of output","type":"CWE"}]}],"providerMetadata":{"shortName":"NCSC.ch","orgId":"455daabc-a392-441d-aa46-37d35189897c","dateUpdated":"2026-07-24T14:00:04.544Z"},"impacts":[{"capecId":"CAPEC-63","descriptions":[{"lang":"en","value":"CAPEC-63 Cross-Site Scripting (XSS)"}]}],"solutions":[{"lang":"en","value":"Update to LWEB-802 version 5.0.8.","supportingMedia":[{"type":"text/html","base64":false,"value":"Update to LWEB-802 version 5.0.8."}]}],"credits":[{"lang":"en","value":"Daniel Hulliger, armasuisse CYD Campus","type":"finder"},{"lang":"en","value":"Damian Pfammatter, armasuisse CYD Campus","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-24T14:54:50.973079Z","id":"CVE-2026-55730","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-24T14:54:57.839Z"}}]}}}