> For the complete documentation index, see [llms.txt](https://gowsundar.gitbook.io/book-of-bugbounty-tips/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gowsundar.gitbook.io/book-of-bugbounty-tips/account-takeover.md).

# Account Takeover

* [Account takeover worth $$$$ 1. Created account on website using test mail id 2. Upload private document like resume and photos 3. Same site having android app > Created account using same mail id but different password 4. Boom account created and able to see private documents](https://twitter.com/ADITYASHENDE17/status/1243268557917442048?s=20)
* [#bugbounty I Was able to bypass the Filter on OAUTH through FUZZ With URL-Encode Chars , Found that Website Add / before %5b when redirect the token Example : target/oauth?redirect\_uri=http://attacker.com%https://t.co/QSv7Vm2STd Redirect Token to : http://Attacker.com/%5b.target.comrget.com?token=…...](https://twitter.com/ElMrhassel/status/1282661956676182017?s=20)
* [I was testing for ATO via reset function . Tried all method but no success. My friend@Tabnexa gave me tip to add double Host in request while requesting password Host: http://site.com Host: http://evilsite.com Boom it worked](https://twitter.com/ADITYASHENDE17/status/1274690489468383232?s=20)

![https://twitter.com/chiraggupta8769/status/1297102892135063552?s=20](/files/-MTAHe5VFwFE2LgAp5gM)

*

![](/files/-MTeAy7MaliX-1yvm32G)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://gowsundar.gitbook.io/book-of-bugbounty-tips/account-takeover.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
