CVE-2024-34064 (Medium) detected in Jinja2-2.11.2-py2.py3-none-any.whl

[mend-bolt-for-github]

CVE-2024-34064 - Medium Severity Vulnerability

Vulnerable Library - Jinja2-2.11.2-py2.py3-none-any.whl

A very fast and expressive template engine.

Library home page: https://files.pythonhosted.org/packages/30/9e/f663a2aa66a09d838042ae1a2c5659828bb9b41ea3a6efa20a20fd92b121/Jinja2-2.11.2-py2.py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /requirements.txt

Dependency Hierarchy:

• Flask_SocketIO-4.3.1-py2.py3-none-any.whl (Root Library)
  • Flask-1.1.2-py2.py3-none-any.whl
    • ❌ Jinja2-2.11.2-py2.py3-none-any.whl (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Jinja is an extensible templating engine. The xmlattr filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, /, >, or =, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the xmlattr filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting values as user input continues to be safe. This vulnerability is fixed in 3.1.4.

Publish Date: 2024-05-06

URL: CVE-2024-34064

CVSS 3 Score Details (5.4)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-h75v-3vvj-5mfj

Release Date: 2024-05-06

Fix Resolution: Jinja2 - 3.1.4

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