CVE-2026-21640

{"id": "CVE-2026-21640", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "support@hackerone.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 2.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.2}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.2}]}, "published": "2026-01-20T21:16:06.063", "references": [{"url": "https://hackerone.com/reports/3445332", "tags": ["Third Party Advisory"], "source": "support@hackerone.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-134"}]}], "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."}], "lastModified": "2026-01-30T20:17:33.390", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:aquaplatform:revive_adserver:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2AA08D1C-3638-4E0D-AC58-A8527E77536F", "versionEndIncluding": "6.0.4", "versionStartIncluding": "6.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "support@hackerone.com"}