# CVE-2020-8213: Information disclosure in Protect for UniFi Cloud Key Gen2 Plus

> Unauthenticated attackers can enumerate valid usernames in UniFi Protect via timing and response code analysis, facilitating targeted attacks.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:** 30 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-532p-r74j-rw26

## What is CVE-2020-8213?

CVE-2020-8213 is a medium-severity vulnerability in Protect for UniFi Cloud Key Gen2 Plus, published on 30 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information exposure vulnerability exists in UniFi Protect before v1.13.4-beta.5 that allowed unauthenticated attackers access to valid usernames for the UniFi Protect web application via HTTP response code and response timing.

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2020-8213?

It affects 1 product.


Products: Ui Unifi Protect.

## How do I fix CVE-2020-8213?

No fix has been published for CVE-2020-8213 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8213 being exploited?

There is no known exploitation of CVE-2020-8213 in the wild and no public exploit code.

## Other vulnerabilities in Protect for UniFi Cloud Key Gen2 Plus

- [CVE-2026-55115](https://insights.sbomify.com/CVE-2026-55115/): Server-side request forgery in UniFi Protect Application (critical 9.9)
- [CVE-2021-22943](https://insights.sbomify.com/CVE-2021-22943/): A vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained access to a network (critical 9.6)
- [CVE-2026-56841](https://insights.sbomify.com/CVE-2026-56841/): SQL injection in UniFi Protect Application (high 8.8)
- [CVE-2026-21633](https://insights.sbomify.com/CVE-2026-21633/): Auth bypass in UniFi Protect Application (high 8.8)
- [CVE-2021-22957](https://insights.sbomify.com/CVE-2021-22957/): Cross-site request forgery in UniFi Protect application (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8213 and fix it if it is affected.

What it is: CVE-2020-8213 is a medium-severity vulnerability in Protect for UniFi Cloud Key Gen2 Plus, published on 30 Jul 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-2020-8213 in the wild and no public exploit code.

Affected product: Protect for UniFi Cloud Key Gen2 Plus. 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-2020-8213/ (Markdown: https://insights.sbomify.com/CVE-2020-8213/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8213
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8213
- OSV: https://osv.dev/vulnerability/CVE-2020-8213

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8213/
Summaries are generated and may contain mistakes; the official description above is the record.