Security vulnerabilities

Attached to Project: Security vulnerabilities
Opened by BlackCat2 - 19.10.2024
Last edited by cbay - 24.10.2024

### Bug Report: XSS Vulnerability via File Upload

- Bug Type: Cross-Site Scripting (XSS)
- Affected Site: https://admin.alwaysdata.com

#### Steps to Reproduce
1. Log in to the admin panel at [https://admin.alwaysdata.com](https://admin.alwaysdata.com).
2. Navigate to the Feedback section.
3. Create a new ticket for feedback.
4. Attach a file that contains an embedded XSS payload
5. Submit the feedback with the file attached.
6. After submission, open the file in the ticket view.
7. Observe that a popup appears as a result of the XSS payload execution.

#### Impact
- Security Risk: This vulnerability allows attackers to execute arbitrary JavaScript code in the context of the user's browser.
- Potential Exploits: This can lead to session hijacking, redirecting users to malicious sites, or stealing sensitive user information.
- Severity: High – Since the attack leverages file uploads and can be triggered by opening the file in the browser, it could potentially impact many users who interact with the file.

#### Description
The issue occurs when a file is uploaded with a malicious XSS payload embedded. The uploaded file is not sanitized or filtered correctly, allowing the script to execute when viewed. This vulnerability could lead to a serious security breach, compromising user accounts and system data.