CVE-2022-31108

Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to "load" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks.
Configurations

Configuration 1 (hide)

cpe:2.3:a:mermaid_project:mermaid:*:*:*:*:*:node.js:*:*

History

21 Nov 2024, 07:03

Type Values Removed Values Added
References () https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225 - Patch, Third Party Advisory () https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225 - Patch, Third Party Advisory
References () https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf - Exploit, Third Party Advisory () https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf - Exploit, Third Party Advisory
CVSS v2 : 5.8
v3 : 6.1
v2 : 5.8
v3 : 4.1

21 Jul 2023, 17:07

Type Values Removed Values Added
CWE CWE-74 CWE-79

Information

Published : 2022-06-28 19:15

Updated : 2024-11-21 07:03


NVD link : CVE-2022-31108

Mitre link : CVE-2022-31108

CVE.ORG link : CVE-2022-31108


JSON object : View

Products Affected

mermaid_project

  • mermaid
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-79

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