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+# Django < 2.0.8 Open Redirect in CommonMiddleware (CVE-2018-14574)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design.
+
+Django versions before 2.0.8 and 1.11.15 contain an open redirect vulnerability in CommonMiddleware when both `django.middleware.common.CommonMiddleware` and the `APPEND_SLASH` setting are enabled. If the project has a URL pattern that accepts any path ending in a slash, a maliciously crafted URL could lead to a redirect to an arbitrary external site, enabling phishing and other attacks.
+
+References:
+
+- <https://www.djangoproject.com/weblog/2018/aug/01/security-releases/>
+- <https://nvd.nist.gov/vuln/detail/CVE-2018-14574>
+
+## Environment Setup
+
+Execute the following command to start a vulnerable Django 2.0.7 server:
+
+```
+docker compose build
+docker compose up -d
+```
+
+After the server is started, you can access the Django home page at `http://your-ip:8000`.
+
+## Vulnerability Reproduction
+
+Visit the following URL to trigger the open redirect vulnerability:
+
+```
+http://your-ip:8000//www.example.com
+```
+
+The server will redirect you to `//www.example.com/`, which the browser interprets as an absolute URL, effectively redirecting to an external site:
+
+![](1.png)
+
+This vulnerability can be exploited by attackers to redirect users to malicious websites, potentially leading to phishing attacks or other security issues.