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# 🛡️ CVE Disclosure: CVE-2025-61456 — Reflected XSS in E-commerce Project

**Disclosure Date:** 14 October 2025  
**CVE ID:** CVE-2025-61456  
**Severity:** MEDIUM (CVSS 6.1)

---

## 🧩 Summary

A reflected Cross-Site Scripting (XSS) vulnerability exists in the `E-commerce Project v1.0`, specifically within the `index.php` endpoint. Unsanitized input in the URL path parameter is directly reflected back into the response HTML, allowing attackers to execute arbitrary JavaScript in the browser of a user who visits a malicious link or submits a crafted request.

This issue has been assigned the identifier **CVE-2025-61456**. At the time of disclosure, **no patch** has been released by the vendor.

---

## 📦 Affected Product

- **Vendor:** Independent (Bhabishya-123)  
- **Project:** [E-commerce](https://github.com/Bhabishya-123/E-commerce)  
- **Version:** v1.0  
- **File:** `index.php`  
- **Vulnerable Endpoint:**  
  `http://localhost/e-commerce-main/index.php`

---

## 🔬 Vulnerability Details

The server fails to properly sanitize the URL path parameter in `index.php` before reflecting it into the response HTML. This allows attackers to inject JavaScript payloads through the URL path, leading to client-side code execution.

An attacker crafts input containing embedded script-like content and sends it to the vulnerable GET endpoint. Because the server reflects the input into the HTML response without applying proper HTML/attribute/JS encoding, the browser treats the reflected content as executable markup and runs it. This is a reflected (non-persistent) XSS scenario; the attacker must persuade a victim to perform the request or visit a specially constructed link/form.

### Vulnerable Code Pattern (hypothetical):
```php
$path = $_SERVER['PATH_INFO'];
echo "<div>Path: $path</div>";
```

---

## 📌 CWE Classification

| CWE ID | Title                                                                 |
|--------|-----------------------------------------------------------------------|
| [CWE-79](https://cwe.mitre.org/data/definitions/79.html) | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') |

---

## 📊 CVSS v3.1 Score

| Score | Severity | Vector String                              |
|-------|----------|---------------------------------------------|
| 6.1   | MEDIUM   | `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N` |

---

## 💥 Impact

A successful exploitation could result in:

- 🧠 **Execution of arbitrary JavaScript**
- 🎭 **Phishing or impersonation** via HTML injection
- 🍪 **Session hijacking or token theft**
- 🚨 **Forced redirection or malware delivery**
- 🎣 **Credential harvesting** through fake login forms

---

## 🧪 Proof of Concept (PoC)

### 1. Clone the Repository

```bash
git clone https://github.com/Bhabishya-123/E-commerce.git
```

### 2. Host Locally

Use XAMPP/LAMP to deploy the project and access the application.

### 3. Exploit the Vulnerability

#### 📥 Sample Request
```http
GET /e-commerce-main/index.php/fmfct"><script>alert(1)</script>xfniu?id=unknown HTTP/1.1
Host: localhost
```

#### 📋 Injected Payload
```html
fmfct"><script>alert(1)</script>xfniu
```

**Explanation:**  
The payload `"><script>alert(1)</script>` breaks out of the HTML context and injects a JavaScript alert. When a victim clicks a malicious link containing this payload, the JavaScript executes in their browser.

### 4. Expected Result

If vulnerable, the browser will execute the JavaScript code, displaying an alert box with the value `1`.

---

## 🔐 Recommendations

- ✅ Use `htmlspecialchars()` or equivalent to encode all untrusted output before rendering to HTML.
- 🧰 Implement **server-side input validation** for all URL parameters and path information.
- 🧱 Set strong **Content Security Policy (CSP)** headers to prevent inline script execution.
- 🚫 Avoid directly embedding unsanitized user inputs into HTML responses.
- 🔒 Implement proper **output encoding** based on context (HTML, JavaScript, URL, CSS).

### ✅ Example Fix
```php
$path = htmlspecialchars($_SERVER['PATH_INFO'], ENT_QUOTES, 'UTF-8');
echo "<div>Path: $path</div>";
```

### 🛡️ Content Security Policy Example
```http
Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none'
```

---

## 📆 Timeline

| Event                    | Date           |
|--------------------------|----------------|
| Vulnerability Discovered | 16 September 2025  |
| Public Disclosure        | 13 October 2025   |
| Patch Available          | ❌ Not available as of disclosure |

---

## 🙋‍♂️ Credits

This vulnerability was discovered and disclosed by:

**Tansique Dasari**  
🔗 [GitHub](https://github.com/tansique-17)  
✉️ [tansique.d@gmail.com](mailto:tansique.17@gmail.com)

---

## 🔗 References

- [OWASP - XSS](https://owasp.org/www-community/attacks/xss/)
- [CWE-79 - XSS Classification](https://cwe.mitre.org/data/definitions/79.html)
- [PortSwigger - Cross-site Scripting](https://portswigger.net/web-security/cross-site-scripting)
- [CVE-2025-61456 on CVE.org](https://cve.org/CVERecord?id=CVE-2025-61456)

---

> 💬 *This advisory is published independently due to absence of an official vendor patch.*

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