CVE-2019-12830

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*", "matchCriteriaId": "438D60BF-E8A0-41F9-AE8E-B17569ECD586", "versionEndExcluding": "1.8.21", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue."}, {"lang": "es", "value": "En MyBB anterior a 1.8.21, un atacante puede aprovechar un fallo de an\u00e1lisis en el renderizador de Publicaci\u00f3n y Mensaje Privado que conlleva a un ataque XSS persistente de BBCode de [video] para controlar cualquier cuenta del foro, tambi\u00e9n se conoce como un problema de video anidado de MyCode."}], "id": "CVE-2019-12830", "lastModified": "2026-06-17T02:15:34.683", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-06-15T18:29:00.220", "references": [{"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Vendor Advisory"], "url": "https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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