{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-15T20:08:06.339","vulnerabilities":[{"cve":{"id":"CVE-2020-26574","sourceIdentifier":"cve@mitre.org","published":"2020-10-06T15:15:15.490","lastModified":"2024-11-21T05:20:06.693","vulnStatus":"Modified","cveTags":[{"sourceIdentifier":"cve@mitre.org","tags":["unsupported-when-assigned"]}],"descriptions":[{"lang":"en","value":"Leostream Connection Broker 8.2.x is affected by stored XSS. An unauthenticated attacker can inject arbitrary JavaScript code via the webquery.pl User-Agent HTTP header. It is rendered by the admins the next time they log in. The JavaScript injected can be used to force the admin to upload a malicious Perl script that will be executed as root via libMisc::browser_client. NOTE: This vulnerability only affects products that are no longer supported by the maintainer"},{"lang":"es","value":"** NO SOPORTADO CUANDO SE ASIGNÓ ** Leostream Connection Broker versión 8.2.x está afectado por una vulnerabilidad de tipo XSS almacenado. Un atacante no autenticado puede inyectar código JavaScript arbitrario por medio del encabezado HTTP User-Agent del archivo webquery.pl. Es procesado por los administradores la próxima vez que inician sesión. El JavaScript inyectado puede ser usado para obligar al administrador a cargar un script Perl malicioso que será ejecutado como root mediante la función libMisc::browser_client. NOTA: Esta vulnerabilidad solo afecta a los productos que ya no son compatibles con el mantenedor"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","baseScore":9.6,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":6.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:C/I:C/A:C","baseScore":9.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":8.6,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:*","versionStartIncluding":"8.2.15","versionEndIncluding":"8.2.73","matchCriteriaId":"949E13FF-730E-4510-B1C4-D99B12756246"}]}]}],"references":[{"url":"https://adepts.of0x.cc/leostream-xss-to-rce/","source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.leostream.com/resources/product-lifecycle/","source":"cve@mitre.org","tags":["Release Notes","Vendor Advisory"]},{"url":"https://adepts.of0x.cc/leostream-xss-to-rce/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.leostream.com/resources/product-lifecycle/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Vendor Advisory"]}]}}]}