CVE-2026-34092

import requests def check_cve_2026_34092(target_url): """ PoC for CVE-2026-34092: Sensitive Information Disclosure in MediaWiki. This script checks if the target MediaWiki instance leaks sensitive info via Skin.php. """ # Attempt to access the vulnerable component or trigger the leak # Note: The specific endpoint or parameter triggering the leak in Skin.php is hypothetical # based on the vulnerability description. payload = {} headers = { 'User-Agent': 'CVE-2026-34092-Scanner' } try: response = requests.get(target_url, params=payload, headers=headers, timeout=10) # Analyze response for potential sensitive leaks (e.g., stack traces, paths) if response.status_code == 200: # Example check: Look for specific MediaWiki internal paths or debug tokens if 'includes/Skin' in response.text or 'Stack trace' in response.text: print(f"[+] Potential Vulnerability Detected at {target_url}") print("[+] Response contains potential sensitive information.") return True else: print("[-] No obvious sensitive information leaked in default response.") else: print(f"[!] Server returned status code: {response.status_code}") except requests.RequestException as e: print(f"[!] Error connecting to target: {e}") return False if __name__ == "__main__": target = "http://example-mediawiki.com/" # Replace with actual target check_cve_2026_34092(target)

{"cve": {"id": "CVE-2026-34092", "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "published": "2026-05-11T16:17:30.663", "lastModified": "2026-05-14T16:41:03.460", "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/Skin/Skin.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:H/AT:N/PR:L/UI:P/VC:L/VI:N/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": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "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:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "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/T384147", "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "tags": ["Issue Tracking", "Vendor Advisory"]}]}}