CVE-2021-23814

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-23814", "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "dateUpdated": "2025-06-17T11:38:06.941Z", "dateReserved": "2021-01-08T00:00:00.000Z", "datePublished": "2021-12-17T20:00:14.149Z"}, "containers": {"cna": {"metrics": [{"cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "baseScore": 6.7, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L/E:P"}}], "credits": [{"value": "Huy Nguyen", "lang": "en"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "description": "Arbitrary File Upload", "lang": "en"}]}], "providerMetadata": {"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk", "dateUpdated": "2025-06-17T11:38:06.941Z"}, "descriptions": [{"value": "This affects versions of the package unisharp/laravel-filemanager before 2.6.2. The upload() function does not sufficiently validate the file type when uploading.\r\rAn attacker may be able to reproduce the following steps:\r\r1. Install a package with a web Laravel application.\r2. Navigate to the Upload window\r3. Upload an image file, then capture the request\r4. Edit the request contents with a malicious file (webshell)\r5. Enter the path of file uploaded on URL - Remote Code Execution\r\r\r**Note:** Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).", "lang": "en"}], "references": [{"url": "https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"}, {"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"}, {"url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1"}, {"url": "https://github.com/UniSharp/laravel-filemanager/issues/1113"}, {"url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2"}], "affected": [{"product": "unisharp/laravel-filemanager", "versions": [{"version": "0", "lessThan": "2.6.2", "status": "affected", "versionType": "semver"}], "vendor": "n/a"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:14:08.890Z"}, "title": "CVE Program Container", "references": [{"url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199", "tags": ["x_transferred"]}, {"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26", "tags": ["x_transferred"]}, {"url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975", "tags": ["x_transferred"]}]}]}}

{}

{"affected": [{"affectedData": [{"product": "unisharp/laravel-filemanager", "vendor": "n/a", "versions": [{"lessThan": "2.6.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:unisharp:laravel-filemanager:*:*:*:*:*:*:*:*", "matchCriteriaId": "4467027F-A375-40AE-AAC5-2A6CD3BC9598", "versionStartIncluding": "0.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "This affects versions of the package unisharp/laravel-filemanager before 2.6.2. The upload() function does not sufficiently validate the file type when uploading.\r\rAn attacker may be able to reproduce the following steps:\r\r1. Install a package with a web Laravel application.\r2. Navigate to the Upload window\r3. Upload an image file, then capture the request\r4. Edit the request contents with a malicious file (webshell)\r5. Enter the path of file uploaded on URL - Remote Code Execution\r\r\r**Note:** Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories)."}, {"lang": "es", "value": "Esto afecta al paquete unisharp/laravel-filemanager desde la versi\u00f3n 0.0.0. La funci\u00f3n upload() no comprueba suficientemente el tipo de archivo cuando es cargado. Un atacante puede ser capaz de reproducir los siguientes pasos: - Instalar un paquete con una aplicaci\u00f3n web Laravel. - Navegar a la ventana de subida - Subir un archivo de imagen, luego capturar la petici\u00f3n - Editar el contenido de la petici\u00f3n con un archivo malicioso (webshell) - Introducir la ruta del archivo subido en la URL - Ejecuci\u00f3n de C\u00f3digo Remota. **Nota: La prevenci\u00f3n para extensiones malas puede hacerse usando una lista blanca en el archivo de configuraci\u00f3n (lfm.php). El documento correspondiente puede encontrarse en [aqu\u00ed](https://unisharp.github.io/laravel-filemanager/configfolder-categories)"}], "id": "CVE-2021-23814", "lastModified": "2026-06-17T03:38:53.513", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.5, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-17T20:15:08.340", "references": [{"source": "report@snyk.io", "tags": ["Broken Link", "Third Party Advisory"], "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"}, {"source": "report@snyk.io", "url": "https://github.com/UniSharp/laravel-filemanager/issues/1113"}, {"source": "report@snyk.io", "url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1"}, {"source": "report@snyk.io", "url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2"}, {"source": "report@snyk.io", "url": "https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory"], "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "report@snyk.io", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}