CVE-2021-21383 Vulnerability Details

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CVE-2021-21383 Metadata Quick Info

CVE Published: 18/03/2021 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: GitHub_M | Vendor: Requarks | Product: wiki
Status : PUBLISHED

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CVE-2021-21383 Description

Wiki.js an open-source wiki app built on Node.js. Wiki.js before version 2.5.191 is vulnerable to stored cross-site scripting through mustache expressions in code blocks. This vulnerability exists due to mustache expressions being parsed by Vue during content injection even though it is contained within a `

` element. By creating a crafted wiki page, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the page is viewed by other users. For an example see referenced GitHub Security Advisory. Commit 5ffa189383dd716f12b56b8cae2ba0d075996cf1 fixes this vulnerability by adding the v-pre directive to all `
` tags during the render.					


					
					
Metrics
					CVSS Version: 3.1 | 
					Base Score: 7.6 HIGH

					Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N 


					
					l➤ Exploitability Metrics:

						     Attack Vector (AV)* NETWORK 

						     Attack Complexity (AC)* LOW 

						     Privileges Required (PR)* LOW 

						     User Interaction (UI)* REQUIRED 

						     Scope (S)* CHANGED 


  			

					l➤ Impact Metrics:

						     Confidentiality Impact (C)* LOW 

						     Integrity Impact (I)* HIGH 

						     Availability Impact (A)* NONE 


					
					
Weakness Enumeration (CWE)
					CWE-ID: CWE-79 

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

					Source: Requarks 


					
					
Common Attack Pattern Enumeration and Classification (CAPEC)
					CAPEC-ID:  

					CAPEC Description:  



					
					
						Source: NVD (National Vulnerability Database).