# CVE-2020-28186: Business logic in n/a

> Remote attackers can exploit email injection in the password reset feature to take over user accounts on TerraMaster NAS devices.

- **Severity:** High 7.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6q5r-2gfw-g2w4

## What is CVE-2020-28186?

CVE-2020-28186 is a high-severity vulnerability in n/a, published on 24 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Email Injection in TerraMaster TOS <= 4.2.06 allows remote unauthenticated attackers to abuse the forget password functionality and achieve account takeover.

Weakness: CWE-640 (Weak Password Recovery Mechanism for Forgotten Password)

## Which versions are affected by CVE-2020-28186?

It affects 1 product.


Products: Terra-Master Tos.

## How do I fix CVE-2020-28186?

No fix has been published for CVE-2020-28186 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-28186 being exploited?

There is no known exploitation of CVE-2020-28186 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-45837](https://insights.sbomify.com/CVE-2021-45837/): Command injection in n/a (critical 9.8)
- [CVE-2021-45840](https://insights.sbomify.com/CVE-2021-45840/): Command injection in n/a (critical 9.8)
- [CVE-2020-15568](https://insights.sbomify.com/CVE-2020-15568/): Code injection in n/a (critical 9.8)
- [CVE-2020-28187](https://insights.sbomify.com/CVE-2020-28187/): Path traversal in n/a (critical 9.8)
- [CVE-2020-28188](https://insights.sbomify.com/CVE-2020-28188/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-28186 and fix it if it is affected.

What it is: CVE-2020-28186 is a high-severity vulnerability in n/a, published on 24 Dec 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-2020-28186 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-2020-28186/ (Markdown: https://insights.sbomify.com/CVE-2020-28186/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-28186
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-28186
- OSV: https://osv.dev/vulnerability/CVE-2020-28186

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-28186/
Summaries are generated and may contain mistakes; the official description above is the record.