# CVE-2018-0587: File upload in Ultimate Member

> Authenticated attackers can upload arbitrary image files in the Ultimate Member WordPress plugin, potentially leading to code execution.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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:** 14 May 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-m2cc-xh6j-cr9r

## What is CVE-2018-0587?

CVE-2018-0587 is a medium-severity vulnerability in Ultimate Member, published on 14 May 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Unrestricted file upload vulnerability in Ultimate Member plugin prior to version 2.0.4 for WordPress allows remote authenticated users to upload arbitrary image files via unspecified vectors.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2018-0587?

It affects 1 product.


Products: Ultimatemember User Profile \& Membership.

## How do I fix CVE-2018-0587?

No fix has been published for CVE-2018-0587 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0587 being exploited?

There is no known exploitation of CVE-2018-0587 in the wild and no public exploit code.

## Other vulnerabilities in Ultimate Member

- [CVE-2018-10233](https://insights.sbomify.com/CVE-2018-10233/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2018-0588](https://insights.sbomify.com/CVE-2018-0588/): Path traversal in Ultimate Member (high 7.5)
- [CVE-2018-10234](https://insights.sbomify.com/CVE-2018-10234/): Cross-site scripting in n/a (medium 4.8)
- [CVE-2018-0586](https://insights.sbomify.com/CVE-2018-0586/): Path traversal in Ultimate Member (medium 4.3)
- [CVE-2018-0589](https://insights.sbomify.com/CVE-2018-0589/): Missing authorization in Ultimate Member (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0587 and fix it if it is affected.

What it is: CVE-2018-0587 is a medium-severity vulnerability in Ultimate Member, published on 14 May 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-0587 in the wild and no public exploit code.

Affected product: Ultimate Member. 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-2018-0587/ (Markdown: https://insights.sbomify.com/CVE-2018-0587/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0587
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0587
- OSV: https://osv.dev/vulnerability/CVE-2018-0587

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0587/
Summaries are generated and may contain mistakes; the official description above is the record.