CSS can be injected into the page via README.md

[alperenisa]

Select Topic Area

Bug

Body

The user here seems to be using the math module.
https://github.com/lustryrose882

[athul-22]

To confirm the problem, you can try the following steps:

Create a README.md File: Add potentially malicious CSS to a README.md file in a test repository.
markdown
Copy code

Test

<style> body { background-color: red; } </style>

Push to GitHub: Push the file to a GitHub repository and view the rendered README.md on GitHub.