VDB-305758 · CVE-2020-36844 · GCVE-0-2020-36844

KnowBe4 Security Awareness Training prior 2020-01-10 javascript URL window.location.href cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in KnowBe4 Security Awareness Training. This affects an unknown part of the component javascript URL Handler. Executing a manipulation of the argument window.location.href can lead to cross site scripting. This vulnerability appears as CVE-2020-36844. The attack may be performed from remote. There is no available exploit. This product is provided as a managed service, meaning users do not have the ability to maintain vulnerability countermeasures themselves. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in KnowBe4 Security Awareness Training. This vulnerability affects an unknown code block of the component javascript URL Handler. The manipulation of the argument window.location.href with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is available at doyler.net. This vulnerability was named CVE-2020-36844 since 04/20/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 2020-01-10 eliminates this vulnerability.

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Productinfo

Vendor

KnowBe4

Name

Security Awareness Training

Managed Service

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (MITRE): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔍

Upgrade: Security Awareness Training 2020-01-10

Timelineinfo

01/10/2020 🔍
04/20/2025 +1926 days 🔍
04/21/2025 +1 days 🔍
04/21/2025 +0 days 🔍
04/21/2025 +0 days 🔍

Sourcesinfo

Advisory: doyler.net
Status: Confirmed

CVE: CVE-2020-36844 (🔍)
GCVE (CVE): GCVE-0-2020-36844
GCVE (VulDB): GCVE-100-305758

Entryinfo

Created: 04/21/2025 03:05
Changes: 04/21/2025 03:05 (66)
Complete: 🔍
Cache ID: 216::103