Vulnerability-Lookup

GHSA-G495-HM74-5J37

Vulnerability from github – Published: 2026-04-11 03:30 – Updated: 2026-04-11 03:30

Details

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.

Severity ?

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-3371"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-11T02:16:01Z",
    "severity": "MODERATE"
  },
  "details": "The Tutor LMS \u2013 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\u0027s `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.",
  "id": "GHSA-g495-hm74-5j37",
  "modified": "2026-04-11T03:30:30Z",
  "published": "2026-04-11T03:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3371"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1687"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1755"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L252"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/3.9.7\u0026new_path=%2Ftutor/tags/3.9.8"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f9cf0430-8577-449a-aefe-d7bf606fe2de?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-3371 (GCVE-0-2026-3371)

Vulnerability from cvelistv5 – Published: 2026-04-11 01:25 – Updated: 2026-04-13 15:15

Title

Tutor LMS <= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification

Summary

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.

Severity ?

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

Wordfence

References

URL

Tags

	https://www.wordfence.com/threat-intel/vulnerabil…
	https://plugins.trac.wordpress.org/browser/tutor/…
	https://plugins.trac.wordpress.org/browser/tutor/…
	https://plugins.trac.wordpress.org/browser/tutor/…
	https://plugins.trac.wordpress.org/changeset?old_…

Impacted products

	Vendor	Product	Version
	themeum	Tutor LMS – eLearning and online course solution	Affected: 0 , ≤ 3.9.7 (semver)

Credits

Hunter Jensen

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3371",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T15:10:52.681017Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-13T15:15:07.829Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Tutor LMS \u2013 eLearning and online course solution",
          "vendor": "themeum",
          "versions": [
            {
              "lessThanOrEqual": "3.9.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Hunter Jensen"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Tutor LMS \u2013 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\u0027s `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": [
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-11T01:25:01.083Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f9cf0430-8577-449a-aefe-d7bf606fe2de?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1687"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1755"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L252"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/3.9.7\u0026new_path=%2Ftutor/tags/3.9.8"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-27T19:33:20.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-04-10T12:00:50.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Tutor LMS \u003c= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-3371",
    "datePublished": "2026-04-11T01:25:01.083Z",
    "dateReserved": "2026-02-27T22:04:08.540Z",
    "dateUpdated": "2026-04-13T15:15:07.829Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-G495-HM74-5J37

CVE-2026-3371 (GCVE-0-2026-3371)

Tags

Sightings

Nomenclature