# CVE-2020-36845: Open redirect in Security Awareness Training

> An attacker can redirect users to arbitrary external URLs via an unvalidated redirect function in the KnowBe4 Security Awareness Training application.

- **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:** 20 Apr 2025
- **Updated:** 21 Apr 2025
- **Also known as:** GHSA-rfcx-6p2f-m3vg

## What is CVE-2020-36845?

CVE-2020-36845 is a medium-severity vulnerability in KnowBe4 Security Awareness Training, published on 20 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The KnowBe4 Security Awareness Training application before 2020-01-10 contains a redirect function that does not validate the destination URL before redirecting. The response has a SCRIPT element that sets window.location.href to an arbitrary https URL.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2020-36845?

It affects 1 product.


Products: Knowbe4 Security Awareness Training.

## How do I fix CVE-2020-36845?

No fix has been published for CVE-2020-36845 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36845 being exploited?

There is no known exploitation of CVE-2020-36845 in the wild and no public exploit code.

## Other vulnerabilities in KnowBe4 Security Awareness Training

- [CVE-2020-36844](https://insights.sbomify.com/CVE-2020-36844/): Cross-site scripting in Security Awareness Training (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36845 and fix it if it is affected.

What it is: CVE-2020-36845 is a medium-severity vulnerability in KnowBe4 Security Awareness Training, published on 20 Apr 2025. 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-2020-36845 in the wild and no public exploit code.

Affected product: KnowBe4 Security Awareness Training. 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-2020-36845/ (Markdown: https://insights.sbomify.com/CVE-2020-36845/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36845
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36845
- OSV: https://osv.dev/vulnerability/CVE-2020-36845

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-36845/
Summaries are generated and may contain mistakes; the official description above is the record.