{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21663", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-01-02T15:00:02.870Z", "datePublished": "2026-01-20T20:48:47.974Z", "dateUpdated": "2026-01-20T20:48:47.974Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "HackerOne community member Patrick Lang (7yr) has reported a reflected XSS vulnerability in the banner-acl.php script of Revive Adserver. An attacker can craft a specific URL that includes an HTML payload in a parameter. If a logged in administrator visits the URL, the HTML is sent to the browser and malicious scripts would be executed."}], "affected": [{"defaultStatus": "unaffected", "vendor": "Revive", "product": "Revive Adserver", "versions": [{"version": "6", "status": "affected", "lessThanOrEqual": "6.0.4", "versionType": "semver"}]}], "references": [{"url": "https://hackerone.com/reports/3473696"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-01-20T20:48:47.974Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "HackerOne community member Patrick Lang (7yr) has reported a reflected XSS vulnerability in the banner-acl.php script of Revive Adserver. An attacker can craft a specific URL that includes an HTML payload in a parameter. If a logged in administrator visits the URL, the HTML is sent to the browser and malicious scripts would be executed."}], "id": "CVE-2026-21663", "lastModified": "2026-01-20T21:16:06.443", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "support@hackerone.com", "type": "Secondary"}]}, "published": "2026-01-20T21:16:06.443", "references": [{"source": "support@hackerone.com", "url": "https://hackerone.com/reports/3473696"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Received"}

{}

{"created": "2026-01-21T11:18:47.226057+00:00", "updated": "2026-01-21T11:18:47.226090+00:00", "vendors": ["revive", "revive$PRODUCT$adserver"]}