CVE-2021-23814

{"id": "CVE-2021-23814", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.5, "exploitabilityScore": 1.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-12-17T20:15:08.340", "references": [{"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26", "tags": ["Broken Link", "Third Party Advisory"], "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": "report@snyk.io"}, {"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26", "tags": ["Broken Link", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "report@snyk.io", "description": [{"lang": "en", "value": "CWE-94"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-434"}]}], "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)"}], "lastModified": "2025-06-17T12:15:20.773", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:unisharp:laravel-filemanager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4467027F-A375-40AE-AAC5-2A6CD3BC9598", "versionStartIncluding": "0.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}