{"api_version":"1","generated_at":"2026-11-12T20:21:04+00:00","cve":"CVE-2026-108558","urls":{"html":"https://cve.report/CVE-2026-108558","api":"https://cve.report/api/cve/CVE-2026-108558.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-108558","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108558"},"summary":{"title":"CVE-2026-108558","description":"A reflected cross-site scripting vulnerability in the conversion-statistics pages of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in an authenticated user's browser by persuading them to visit a crafted URL. An incorrect ownership check validates the advertiser identifier instead of the supplied website identifier, allowing malicious website input to reach HTML output without appropriate encoding. A related output issue affects the hour parameter. The issue is fixed in Revive Adserver 6.0.9 by validating the correct website identifier and normalising the hour parameter before formatting.","state":"PUBLISHED","assigner":"hackerone","published_at":"2026-11-11 18:18:26","updated_at":"2026-11-12 19:05:35"},"problem_types":["CWE-79","CWE-79 CWE-79 Cross-site Scripting (XSS) - Reflected"],"metrics":[{"version":"3.0","source":"support@hackerone.com","type":"Secondary","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","data":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","data":{"baseScore":6.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"}}],"references":[{"url":"https://hackerone.com/reports/3878649","name":"https://hackerone.com/reports/3878649","refsource":"support@hackerone.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-108558","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108558","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Revive","product":"Adserver","version":"affected 6.0.8 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Patrick Lang (7YR)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Adserver","vendor":"Revive","versions":[{"lessThanOrEqual":"6.0.8","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Patrick Lang (7YR)"}],"descriptions":[{"lang":"en","value":"A reflected cross-site scripting vulnerability in the conversion-statistics pages of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in an authenticated user's browser by persuading them to visit a crafted URL. An incorrect ownership check validates the advertiser identifier instead of the supplied website identifier, allowing malicious website input to reach HTML output without appropriate encoding. A related output issue affects the hour parameter. The issue is fixed in Revive Adserver 6.0.9 by validating the correct website identifier and normalising the hour parameter before formatting."}],"metrics":[{"cvssV3_0":{"baseScore":6.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Cross-site Scripting (XSS) - Reflected","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-11T17:30:37.732Z","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","shortName":"hackerone"},"references":[{"url":"https://hackerone.com/reports/3878649"}]}},"cveMetadata":{"assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","assignerShortName":"hackerone","cveId":"CVE-2026-108558","datePublished":"2026-11-11T17:30:37.732Z","dateReserved":"2026-10-10T15:00:00.708Z","dateUpdated":"2026-11-11T17:30:37.732Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-11 18:18:26","lastModifiedDate":"2026-11-12 19:05:35","problem_types":["CWE-79","CWE-79 CWE-79 Cross-site Scripting (XSS) - Reflected"],"metrics":{"cvssMetricV30":[{"source":"support@hackerone.com","type":"Secondary","cvssData":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"108558","Ordinal":"1","Title":"CVE-2026-108558","CVE":"CVE-2026-108558","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"108558","Ordinal":"1","NoteData":"A reflected cross-site scripting vulnerability in the conversion-statistics pages of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in an authenticated user's browser by persuading them to visit a crafted URL. An incorrect ownership check validates the advertiser identifier instead of the supplied website identifier, allowing malicious website input to reach HTML output without appropriate encoding. A related output issue affects the hour parameter. The issue is fixed in Revive Adserver 6.0.9 by validating the correct website identifier and normalising the hour parameter before formatting.","Type":"Description","Title":"CVE-2026-108558"}]}}}