# CVE-2023-3076: MStore API < 3.9.9 - Unauthenticated Privilege Escalation

> Unauthenticated attackers can create user accounts with arbitrary roles via the wholesale REST API endpoint in the MStore API WordPress plugin.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jul 2023
- **Updated:** 12 Nov 2024
- **Also known as:** GHSA-gwr5-qqvh-c57m

## What is CVE-2023-3076?

CVE-2023-3076 is a critical vulnerability in Unknown MStore API, published on 10 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The MStore API WordPress plugin before 3.9.9 does not prevent visitors from creating user accounts with the role of their choice via their wholesale REST API endpoint. This is only exploitable if the site owner paid to access the plugin's pro features.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-3076?

It affects 1 product.


Products: Inspireui Mstore Api.

## How do I fix CVE-2023-3076?

No fix has been published for CVE-2023-3076 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-3076 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3076 exists.

Public exploit code:

- Automatic Mass Tool for check and exploiting vulnerability in CVE-2023-3076 - MStore API < 3.9.9 - Unauthenticated Privilege Escalation (Mass Add Admin + PHP File Upload) (github_poc): https://github.com/im-hanzou/MSAPer

## Other vulnerabilities in Unknown MStore API

- [CVE-2024-6328](https://insights.sbomify.com/CVE-2024-6328/): MStore API – Create Native Android & iOS Apps On The Cloud <= 4.14.7 - Authentication Bypass (critical 9.8)
- [CVE-2023-3277](https://insights.sbomify.com/CVE-2023-3277/): MStore API <= 4.10.7 - Unauthorized Account Access and Privilege Escalation (critical 9.8)
- [CVE-2023-3077](https://insights.sbomify.com/CVE-2023-3077/): MStore API < 3.9.8 - Unauthenticated Blind SQLi (critical 9.8)
- [CVE-2023-3197](https://insights.sbomify.com/CVE-2023-3197/): MStore API <= 4.0.1 - Unauthenticated SQL Injection (critical 9.8)
- [CVE-2020-36713](https://insights.sbomify.com/CVE-2020-36713/): MStore API <= 2.1.5 - Authentication Bypass (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3076 and fix it if it is affected.

What it is: CVE-2023-3076 is a critical vulnerability in Unknown MStore API, published on 10 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3076 exists.

Affected product: Unknown MStore API. 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-2023-3076/ (Markdown: https://insights.sbomify.com/CVE-2023-3076/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3076
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3076
- OSV: https://osv.dev/vulnerability/CVE-2023-3076

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3076/
Summaries are generated and may contain mistakes; the official description above is the record.