What’s Vulnerable › Vulnerabilities

CVE-2020-36844

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-20 · updated 2026-06-17
• Weakness: CWE-79

Description

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 products

• KnowBe4 Security Awareness Training: before 2020-01-10 — fixed in 2020-01-10

How to fix

Upgrade to a fixed version: KnowBe4 Security Awareness Training 2020-01-10. Check the vendor advisory for mitigations.

References

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

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