Files
Ivan Starkov 766d7eb95f chore: Add CSRF protection to prevent Canvas script execution vulnerability (#4047)
## Description

how it works
https://github.com/webstudio-is/webstudio-saas/issues/317#issuecomment-2317121292

- attack example
https://p-845e975a-4e84-4186-b312-431f3a6f99ea-dot-main.development.webstudio.is/
- attack fixed
https://p-845e975a-4e84-4186-b312-431f3a6f99ea-dot-csrf.staging.webstudio.is/

corresponding PR #4060 (Add postMessage token to secure against Canvas
script execution)

Additionally

csp on iframe (see comments)
destination checks - to prevent including loaders/pages into iframes

<img width="1015" alt="image"
src="https://github.com/user-attachments/assets/2d8c6840-e195-424e-942f-8b8d05203e18">


## Steps for reproduction

1. click button
2. expect xyz

## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
2024-09-04 17:08:08 +03:00

6 lines
131 B
TypeScript

export let csrfToken: string | undefined = undefined;
export const updateCsrfToken = (token: string) => {
csrfToken = token;
};