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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-21383 Detail

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 `<pre>` 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 `<pre>` tags during the render.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  5.4 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/Requarks/wiki/commit/5ffa189383dd716f12b56b8cae2ba0d075996cf1 Patch  Third Party Advisory 
https://github.com/Requarks/wiki/commit/5ffa189383dd716f12b56b8cae2ba0d075996cf1 Patch  Third Party Advisory 
https://github.com/Requarks/wiki/releases/tag/2.5.191 Release Notes  Third Party Advisory 
https://github.com/Requarks/wiki/releases/tag/2.5.191 Release Notes  Third Party Advisory 
https://github.com/Requarks/wiki/security/advisories/GHSA-6xx4-m8gx-826r Exploit  Patch  Third Party Advisory 
https://github.com/Requarks/wiki/security/advisories/GHSA-6xx4-m8gx-826r Exploit  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.5.191

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-21383
NVD Published Date:
03/18/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.