{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21640", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-01-01T15:00:02.339Z", "datePublished": "2026-01-20T20:48:47.940Z", "dateUpdated": "2026-01-20T20:48:47.940Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error."}], "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/3445332"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "baseScore": 2.7, "baseSeverity": "LOW"}}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-01-20T20:48:47.940Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error."}], "id": "CVE-2026-21640", "lastModified": "2026-01-20T21:16:06.063", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "version": "3.0"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "support@hackerone.com", "type": "Secondary"}]}, "published": "2026-01-20T21:16:06.063", "references": [{"source": "support@hackerone.com", "url": "https://hackerone.com/reports/3445332"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Received"}

{}

{"created": "2026-01-21T11:18:53.460708+00:00", "updated": "2026-01-21T11:18:53.460733+00:00", "vendors": ["revive", "revive$PRODUCT$adserver"]}