CVE - CVE-2022-31108

CVE-ID
CVE-2022-31108	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf URL:https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf MISC:https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225 URL:https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20220518	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220518)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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