# CVE-2026-1375: Missing authorization in Tutor LMS – eLearning and online course solution

> Authenticated instructors can modify or delete arbitrary courses they do not own due to missing authorization checks in Tutor LMS.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-qxqc-g59m-cqx4

## What is CVE-2026-1375?

CVE-2026-1375 is a high-severity missing authorization vulnerability in themeum Tutor LMS – eLearning and online course solution, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object References (IDOR) in all versions up to, and including, 3.9.5. This is due to missing object-level authorization checks in the `course_list_bulk_action()`, `bulk_delete_course()`, and `update_course_status()` functions. This makes it possible for authenticated attackers, with Tutor Instructor-level access and above, to modify or delete arbitrary courses they do not own by manipulating course IDs in bulk action requests.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-1375?


## How do I fix CVE-2026-1375?

No fix has been published for CVE-2026-1375 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1375 being exploited?

There is no known exploitation of CVE-2026-1375 in the wild and no public exploit code.

Public exploit code:

- Authenticated IDOR / Broken Access Control in Tutor LMS Plugin (github_poc): https://github.com/d3kc4rt1/CVE-2026-1375

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1375 and fix it if it is affected.

What it is: CVE-2026-1375 is a high-severity missing authorization vulnerability in themeum Tutor LMS – eLearning and online course solution, published on 3 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-1375 in the wild and no public exploit code.

Affected product: themeum Tutor LMS – eLearning and online course solution. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-1375/ (Markdown: https://insights.sbomify.com/CVE-2026-1375/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1375
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1375
- OSV: https://osv.dev/vulnerability/CVE-2026-1375

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-1375/
Summaries are generated and may contain mistakes; the official description above is the record.