Patchwork PR: Autofix

[patched-codes]

This pull request from patched fixes 8 issues.

---

• File changed: introduction/playground/ssrf/main.py
  introduction/playground/ssrf/main.py

  Security vulnerability in ssrf_lab function at introduction/playground/ssrf/main.py (lines 0-12). Unsafe file handling using direct read() operation without proper validation could lead to path traversal attacks. High priority fix required to implement proper input validation and file access restrictions.

• File changed: introduction/forms.py
  introduction/forms.py

  Security vulnerability in introduction/forms.py (lines 0-19): Meta class in NewUserForm lacks proper inheritance from base serializer's Meta class, potentially exposing sensitive fields in API responses. Requires immediate attention to implement proper inheritance and field protection.

• File changed: introduction/views.py
  introduction/views.py

  Security ticket for removing unnecessary decode() call in SSRF Lab2 response handling at introduction/views.py (lines 948-959). The vulnerability involves potential decoding errors and unexpected behavior when processing response content. Priority is set to Low as it's primarily a stability concern rather than a direct security risk.

• File changed: introduction/mitre.py
  introduction/mitre.py

  Security ticket for unnecessary decode() calls in introduction/mitre.py (lines 237-247). The code contains redundant string decoding operations that could lead to runtime errors. Fix involves removing unnecessary decode() calls or adding proper type checking before decoding.

• File changed: introduction/lab_code/test.py
  introduction/lab_code/test.py

  Security vulnerability in introduction/lab_code/test.py (lines 0-32): Unsafe YAML deserialization using yaml.load() detected, which can lead to arbitrary code execution. Replace with yaml.safe_load() to fix.

• File changed: setup.py
  setup.py

  Security vulnerability in setup.py (lines 1-27): XML parsing without disabled external entity resolution detected. This can lead to XXE attacks, potentially allowing unauthorized file access and SSRF attacks. High priority fix required to implement secure XML parsing with resolve_entities=False or using defusedxml library.

• File changed: introduction/static/js/a9.js
  introduction/static/js/a9.js

  XSS vulnerability found in introduction/static/js/a9.js (lines 0-45). The code uses innerHTML to insert log entries into the DOM, which can allow execution of malicious scripts. Replace innerHTML with textContent to prevent XSS attacks.

• File changed: pygoat/settings.py
  pygoat/settings.py

  Security vulnerability in pygoat/settings.py (lines 31-32): Overly permissive ALLOWED_HOSTS configuration including '0.0.0.0.' which could allow unauthorized access and potential host header injection attacks. High priority fix required to restrict to specific authorized domains only.