CVE-2022-31108 (Medium) detected in mermaid-8.6.2.min.js
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CVE-2022-31108 - Medium Severity Vulnerability
Vulnerable Library - mermaid-8.6.2.min.js
Markdownish syntax for generating flowcharts, sequence diagrams, class diagrams and gantt charts.
Library home page: https://cdnjs.cloudflare.com/ajax/libs/mermaid/8.6.2/mermaid.min.js
Path to vulnerable library: /nginx-init/content/flink/flink-docs-master/mermaid.min.js
Dependency Hierarchy:
- ❌ mermaid-8.6.2.min.js (Vulnerable Library)
Found in HEAD commit: 6a4a16e473b2d76a096e6618552ef9f10056808e
Found in base branch: main
Vulnerability Details
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.
Publish Date: 2022-06-28
URL: CVE-2022-31108
CVSS 3 Score Details (6.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
Suggested Fix
Type: Upgrade version
Origin: GHSA-x3vm-38hw-55wf
Release Date: 2022-06-28
Fix Resolution: mermaid - 9.1.3
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