# CVE-2026-28145: WordPress MasterStudy LMS plugin <= 3.7.39 - Broken Access Control vulnerability

> Attackers can manipulate user state due to insufficient verification, potentially escalating privileges or modifying data in MasterStudy LMS.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Jul 2026
- **Updated:** 31 Jul 2026
- **Also known as:** GHSA-f3rr-323h-3jm2

## What is CVE-2026-28145?

CVE-2026-28145 is a medium-severity missing authorization vulnerability in StylemixThemes MasterStudy LMS, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.

This issue affects MasterStudy LMS: from n/a through 3.7.39.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2026-28145?


## How do I fix CVE-2026-28145?

No fix has been published for CVE-2026-28145 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-28145 being exploited?

There is no known exploitation of CVE-2026-28145 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-28145 and fix it if it is affected.

What it is: CVE-2026-28145 is a medium-severity missing authorization vulnerability in StylemixThemes MasterStudy LMS, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-28145 in the wild and no public exploit code.

Affected product: StylemixThemes MasterStudy LMS. 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-2026-28145/ (Markdown: https://insights.sbomify.com/CVE-2026-28145/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-28145
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28145
- OSV: https://osv.dev/vulnerability/CVE-2026-28145

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-28145/
Summaries are generated and may contain mistakes; the official description above is the record.