CVE-2021-27889

{"id": "CVE-2021-27889", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "published": "2021-03-15T17:15:22.517", "references": [{"url": "http://packetstormsecurity.com/files/161908/MyBB-1.8.25-Remote-Command-Execution.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://blog.sonarsource.com/mybb-remote-code-execution-chain", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/mybb/mybb/security/advisories/GHSA-xhj7-3349-mqcm", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Cross-site Scripting (XSS) vulnerability in MyBB before 1.8.26 via Nested Auto URL when parsing messages."}, {"lang": "es", "value": "Una vulnerabilidad de tipo Cross-site Scripting (XSS) en MyBB versiones anteriores a 1.8.26 a trav\u00e9s de Nested Auto URL cuando se analizan los mensajes"}], "lastModified": "2021-09-21T17:48:38.253", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E92578FF-AAA5-4F8F-8D78-0662DB9BB02C", "versionEndExcluding": "1.8.26"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}