# CVE-2026-93779: Tutor LMS <= 4.1.2 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via REST API Endpoints

Status: published. Published: 2026-11-07. Updated: 2026-11-07.

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, 4.1.2 via the init_routes due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to read paid course lesson and topic content without enrollment, retrieve quiz answer keys including the is_correct field before attempting a quiz, and enumerate the email addresses, usernames, and registration data of other users including instructors and administrators. Exploitation requires that the attacker hold a valid Tutor LMS API key/secret pair, which is issued to subscriber-level users through the plugin's API key management feature.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- themeum / Tutor LMS – eLearning and online course solution: ≥ 0; ≤ 4.1.2 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: Wordfence

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b0c8b586-784e-43a4-8bb8-c7cb771476a4?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L460 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L376 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L418 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Course.php#L303 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Quiz.php#L209 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Author.php#L43 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/RestAuth.php#L331 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L135 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3748228%40tutor&new=3748228%40tutor (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L135 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L376 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L418 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L460 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Author.php#L43 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Course.php#L303 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Quiz.php#L209 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/RestAuth.php#L331 (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3748228%40tutor&new=3748228%40tutor (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b0c8b586-784e-43a4-8bb8-c7cb771476a4?source=cve (security@wordfence.com)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-93779; retrieved 2026-11-07; source updated 2026-11-07

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93779; retrieved 2026-11-07; source updated 2026-11-07

Revision: 9b1ff71d4cea804c40f7d7a568bf081e048f64563be746d3ffd6985d888473a8

Canonical: https://y2.dev/cve/CVE-2026-93779

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.