# CVE-2020-6859: Missing authorization in n/a

> Remote attackers can modify other users' profiles and cover photos by manipulating the user_id parameter in the Ultimate Member WordPress plugin.

- **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:** 13 Jan 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-w3cg-3g94-p782

## What is CVE-2020-6859?

CVE-2020-6859 is a medium-severity missing authorization vulnerability in n/a, published on 13 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple Insecure Direct Object Reference vulnerabilities in includes/core/class-files.php in the Ultimate Member plugin through 2.1.2 for WordPress allow remote attackers to change other users' profiles and cover photos via a modified user_id parameter. This is related to ajax_image_upload and ajax_resize_image.

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

## Which versions are affected by CVE-2020-6859?

It affects 1 product.


Products: Ultimatemember Ultimate Member.

## How do I fix CVE-2020-6859?

No fix has been published for CVE-2020-6859 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6859 being exploited?

There is no known exploitation of CVE-2020-6859 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-36155](https://insights.sbomify.com/CVE-2020-36155/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-36157](https://insights.sbomify.com/CVE-2020-36157/): Privilege escalation in n/a (critical 10.0)
- [CVE-2020-36156](https://insights.sbomify.com/CVE-2020-36156/): Privilege escalation in n/a (critical 9.9)
- [CVE-2024-1071](https://insights.sbomify.com/CVE-2024-1071/): SQL injection in Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin (critical 9.8)
- [CVE-2023-3460](https://insights.sbomify.com/CVE-2023-3460/): Ultimate Member < 2.6.7 - Unauthenticated Privilege Escalation (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6859 and fix it if it is affected.

What it is: CVE-2020-6859 is a medium-severity missing authorization vulnerability in n/a, published on 13 Jan 2020. 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-2020-6859 in the wild and no public exploit code.

Affected product: n/a. 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-2020-6859/ (Markdown: https://insights.sbomify.com/CVE-2020-6859/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6859
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6859
- OSV: https://osv.dev/vulnerability/CVE-2020-6859

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6859/
Summaries are generated and may contain mistakes; the official description above is the record.