CVE-2021-43721

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Leanote 2.7.0 is vulnerable to Cross Site Scripting (XSS) in the markdown type note. This leads to remote code execution with payload : <video src=x onerror=(function(){require('child_process').exec('calc');})();>

Leanote versión 2.7.0, es vulnerable a un ataque de tipo Cross Site Scripting (XSS) en la nota de tipo markdown. Esto conlleva a una ejecución de código remota con carga útil : (video src=x onerror=(function(){require("child_process").exec("calc");})();)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-15 CVE Reserved
2022-03-28 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-11-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/leanote/desktop-app/issues/364	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Leanote Search vendor "Leanote"		Leanote Search vendor "Leanote" for product "Leanote"				2.7.0 Search vendor "Leanote" for product "Leanote" and version "2.7.0"		-		Affected