# CVE-2023-35093: WordPress MasterStudy LMS Plugin <= 3.0.8 is vulnerable to Broken Access Control

> Logged-in users can view other users' order data, including emails and usernames, due to missing access controls in the MasterStudy LMS plugin.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 22 Jun 2023
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-v8c9-2pwj-6494

## What is CVE-2023-35093?

CVE-2023-35093 is a medium-severity missing authorization vulnerability in StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education, published on 22 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Broken Access Control vulnerability in StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin <= 3.0.8 versions allows any logged-in users, such as subscribers to view the "Orders" of the plugin and get the data related to the order like email, username, and more.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-35093?

It affects 1 product.


Products: Stylemixthemes Masterstudy Lms.

## How do I fix CVE-2023-35093?

No fix has been published for CVE-2023-35093 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35093 being exploited?

There is no known exploitation of CVE-2023-35093 in the wild and no public exploit code.

## Other vulnerabilities in StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education

- [CVE-2024-3136](https://insights.sbomify.com/CVE-2024-3136/): MasterStudy LMS <= 3.3.3 - Unauthenticated Local File Inclusion via template (critical 9.8)
- [CVE-2024-2409](https://insights.sbomify.com/CVE-2024-2409/): MasterStudy LMS <= 3.3.1 - Unauthenticated Privilege Escalation via stm_lms_register AJAX Action (critical 9.8)
- [CVE-2024-2411](https://insights.sbomify.com/CVE-2024-2411/): MasterStudy LMS <= 3.3.0 - Unauthenticated Local File Inclusion via modal (critical 9.8)
- [CVE-2024-1512](https://insights.sbomify.com/CVE-2024-1512/): MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.2.5 - Unauthenticated SQL Injection (critical 9.8)
- [CVE-2022-0441](https://insights.sbomify.com/CVE-2022-0441/): MasterStudy LMS < 2.7.6 - Unauthenticated Admin Account Creation (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35093 and fix it if it is affected.

What it is: CVE-2023-35093 is a medium-severity missing authorization vulnerability in StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education, published on 22 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-35093 in the wild and no public exploit code.

Affected product: StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education. 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-2023-35093/ (Markdown: https://insights.sbomify.com/CVE-2023-35093/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35093
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35093
- OSV: https://osv.dev/vulnerability/CVE-2023-35093

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-35093/
Summaries are generated and may contain mistakes; the official description above is the record.