CVE-2024-34064
MEDIUMJinja < 3.1.4 - Cross-Site Scripting via xmlattr Filter Key Injection
Title source: llmExploitation Summary
EIP tracks 7 public exploits for CVE-2024-34064. PoCs published by SandBlastx.
AI-analyzed exploit summary This repository contains a Flask application vulnerable to CVE-2024-34064, demonstrating an attribute injection vulnerability. The `sanitize_attrs` function fails to properly sanitize user input, allowing malicious attributes to bypass validation.
Description
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.
Exploits (7)
This repository contains a Flask application vulnerable to CVE-2024-34064, demonstrating an attribute injection vulnerability. The `sanitize_attrs` function fails to properly sanitize user input, allowing malicious attributes to bypass validation.
This repository contains a functional Flask application demonstrating CVE-2024-34064, a vulnerability likely related to improper input sanitization in attribute handling. The `sanitize_attrs` function uses regex to filter keys, but the PoC shows how malicious input could bypass this, leading to potential XSS or other injection attacks.
This repository contains a Flask application vulnerable to Server-Side Template Injection (SSTI) via user-controlled input passed to `render_template`. The PoC demonstrates how arbitrary code execution can be achieved by exploiting Jinja2 template injection.
This repository contains a functional Flask application demonstrating CVE-2024-34064, a vulnerability in XML/HTML attribute sanitization. The `sanitize_attrs` function falsely claims to strip '=' characters, allowing attackers to inject malicious attributes like `onclick=alert(1)`.
This repository contains a functional Flask application demonstrating an XSS vulnerability in attribute sanitization. The `sanitize_attrs` function fails to strip dangerous characters like '=', '/', or '>', allowing injection of malicious attributes (e.g., `onclick=alert(1)`).
This repository contains a Flask application demonstrating CVE-2024-34064, a vulnerability related to improper input validation in XML attribute keys. The code includes a sanitization function that correctly validates keys, despite misleading comments suggesting otherwise.
This repository contains a Flask application demonstrating a fix for CVE-2024-34064, which involves sanitizing XML attribute keys to prevent injection attacks. The code includes a regex-based validation mechanism to drop malicious keys.
References (7)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N