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Vulnerabilities

Vulnerability · CVE-2020-36844

The KnowBe4 Security Awareness Training application before 2020-01-10 allows reflected XSS.

Published Apr 20, 2025 · catalog updated Apr 21, 2025 · KnowBe4 Security Awareness Training

Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
28.0%
Remediation
Version ranges on file
Affected products
vendor KnowBe4 Security Awareness Training 0 <2020-01-10

The KnowBe4 Security Awareness Training application before 2020-01-10 allows reflected XSS. The response has a SCRIPT element that sets window.location.href to a JavaScript URL.

Technical analysis

Mechanism and impact are interpreted from ingested advisories — not independent exploit research.

  • CWE classification

    No CWE identifiers stored yet.

  • Prerequisites and impact

    Follow the original vendor advisory for access prerequisites and impact. This catalog does not invent exploit conditions.

How to fix CVE-2020-36844

  • Recommended remediation

    Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

  • Official advisories

What to do

Three reads of the same public record: the decision, the versions on file, and the signals. Confirm the vendor advisory before you patch. This page does not publish exploit steps.

Executive

This is a public record, not a confirmed incident. CVE-2020-36844 is a medium issue in KnowBe4 Security Awareness Training (CVSS 6.1). CISA does not currently list it as known exploited. Next step: Compare installed versions with the linked vendor advisory before changing production.

System administrator

Check whether KnowBe4 Security Awareness Training is installed. Ranges on record: KnowBe4 Security Awareness Training 0 <2020-01-10 (0 <2020-01-10). Compare installed versions with the linked vendor advisory before changing production.

Security analyst

CVSS 6.1. EPSS 28.0%. CISA does not currently list it as known exploited. Weaknesses: not classified. Sources: euvd. Exploit links, when listed below, point at the original publisher.

Related intelligence

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 20, 2025 · EUVD

    Detected

    The KnowBe4 Security Awareness Training application before 2020-01-10 allows reflected XSS. The response has a SCRIPT element that sets window.location.href to a JavaScript URL.

  2. Apr 21, 2025 · EUVD

    Updated

    The KnowBe4 Security Awareness Training application before 2020-01-10 allows reflected XSS. The response has a SCRIPT element that sets window.location.href to a JavaScript URL.

Affected versions

Enter an installed version to get a verified affected / not-affected result against the ranges below.

  • vendor KnowBe4 Security Awareness Training 0 <2020-01-100 <2020-01-10

Sources

  • EUVDVulnerability recordEUVD-2020-30796

    The KnowBe4 Security Awareness Training application before 2020-01-10 allows reflected XSS. The response has a SCRIPT element that sets window.location.href to a JavaScript URL.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.