CVE-2018-25110

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An attacker can exploit this vulnerability by providing specially crafted markdown input, such as deeply nested or repetitively structured brackets or tag attributes, which cause the parser to hang and lead to a Denial of Service."}, {"lang": "es", "value": "Marked antes de la versi\u00f3n 0.3.17 es vulnerable a un ataque de denegaci\u00f3n de servicio de expresiones regulares (ReDoS) debido a un retroceso catastr\u00f3fico en varias expresiones regulares utilizadas para analizar etiquetas HTML y enlaces de Markdown. Un atacante puede explotar esta vulnerabilidad proporcionando una entrada de Markdown especialmente manipulada, como corchetes o atributos de etiqueta profundamente anidados o con estructura repetitiva, que provocan el bloqueo del analizador y provocan una denegaci\u00f3n de servicio."}], "id": "CVE-2018-25110", "lastModified": "2026-06-17T01:54:44.457", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2018-25110", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-05-23T15:09:00.284859Z", "version": "2.0.3"}}]}, "published": "2025-05-23T15:15:20.210", "references": [{"source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2018/CVE-2018-25110"}, {"source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "tags": ["Patch"], "url": "https://github.com/markedjs/marked/commit/20bfc106013ed45713a21672ad4a34df94dcd485"}, {"source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/markedjs/marked/issues/1070"}, {"source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/markedjs/marked/pull/1083"}], "sourceIdentifier": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647", "type": "Secondary"}]}

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