CVE-2025-34076

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Authenticated users can abuse the /api/BackupV2/upload and /api/BackupV2/download endpoints to read arbitrary files from the underlying filesystem. By specifying an absolute file path in the src parameter of the upload request, the server may relocate or delete the target file depending on the web service user\u2019s privileges. The corresponding download endpoint can then be used to retrieve the file contents, effectively enabling local file disclosure. This behavior stems from insufficient validation of user-supplied paths and inadequate restrictions on file access and backup logic."}, {"lang": "es", "value": "Existe una vulnerabilidad de inclusi\u00f3n de archivos locales autenticados en las versiones de Microweber CMS anteriores a la 1.2.11 debido al uso indebido de la API de gesti\u00f3n de copias de seguridad. Los usuarios autenticados pueden abusar de los endpoints /api/BackupV2/upload y /api/BackupV2/download para leer archivos arbitrarios del sistema de archivos subyacente. Al especificar una ruta de archivo absoluta en el par\u00e1metro src de la solicitud de carga, el servidor puede reubicar o eliminar el archivo de destino seg\u00fan los privilegios del usuario del servicio web. El endpoint de descarga correspondiente puede utilizarse para recuperar el contenido del archivo, lo que permite la divulgaci\u00f3n local de archivos. Este comportamiento se debe a una validaci\u00f3n insuficiente de las rutas proporcionadas por el usuario y a restricciones inadecuadas en el acceso a los archivos y la l\u00f3gica de las copias de seguridad."}], "id": "CVE-2025-34076", "lastModified": "2026-10-08T16:16:50.750", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.1, "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/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": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-34076", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-07-03T13:14:29.490236Z", "version": "2.0.3"}}]}, "published": "2025-07-02T20:15:29.690", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://github.com/microweber/microweber"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit"], "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/gather/microweber_lfi.rb"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://vulncheck.com/advisories/microweber-cms-lfi"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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