CVE-2025-34076
An authenticated local file inclusion vulnerability exists in Microweber CMS versions <= 1.2.11 through misuse of the backup management API. 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’s 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.
CVSS
- Versión: 4.0
- Vector: 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
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.24%
- Percentil entre todas las CVEs puntuadas: 82
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-22
Referencias
- https://github.com/microweber/microweber
- https://github.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855
- https://github.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6
- https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/gather/microweber_lfi.rb
- https://vulncheck.com/advisories/microweber-cms-lfi
- https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-34076",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-34076",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-07-03T13:14:29.490236Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 6.1,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"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",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
{
"vendor": "Microweber Ltd.",
"modules": [
"BackupV2/upload",
"BackupV2/download",
"src (upload)",
"filename (download)"
],
"product": "CMS",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.2.11"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2025-07-02T20:15:29.690",
"references": [
{
"url": "https://github.com/microweber/microweber",
"tags": [
"Product"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://github.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855",
"tags": [
"Patch"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://github.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6",
"tags": [
"Patch"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/gather/microweber_lfi.rb",
"tags": [
"Exploit"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://vulncheck.com/advisories/microweber-cms-lfi",
"tags": [
"Third Party Advisory"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b",
"tags": [
"Exploit",
"Third Party Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An authenticated local file inclusion vulnerability exists in Microweber CMS versions <= 1.2.11 through misuse of the backup management API. 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’s 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 inclusión de archivos locales autenticados en las versiones de Microweber CMS anteriores a la 1.2.11 debido al uso indebido de la API de gestión 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 parámetro src de la solicitud de carga, el servidor puede reubicar o eliminar el archivo de destino según los privilegios del usuario del servicio web. El endpoint de descarga correspondiente puede utilizarse para recuperar el contenido del archivo, lo que permite la divulgación local de archivos. Este comportamiento se debe a una validación insuficiente de las rutas proporcionadas por el usuario y a restricciones inadecuadas en el acceso a los archivos y la lógica de las copias de seguridad."
}
],
"lastModified": "2026-06-17T09:13:25.790",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microweber:microweber:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "27F18776-5929-46C8-A145-9CE23BB19915",
"versionEndIncluding": "1.2.11"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "disclosure@vulncheck.com"
}