Описание
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...
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-apps/jammy | needs-triage | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| impish | ignored | end of life |
| jammy | needs-triage | |
| kinetic | ignored | end of life, was needs-triage |
| lunar | DNE | |
| mantic | DNE |
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EPSS
5.8 Medium
CVSS2
4.1 Medium
CVSS3
Связанные уязвимости
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. T
Mermaid is a JavaScript based diagramming and charting tool that uses ...
Possible inject arbitrary `CSS` into the generated graph affecting the container HTML
EPSS
5.8 Medium
CVSS2
4.1 Medium
CVSS3