{"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":"2026-01-21T20:42:21.072Z"},"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"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-21T20:41:47.623291Z","id":"CVE-2026-21663","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":"2026-01-21T20:42:21.072Z"}}]}}