5.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-67485

CVE-2025-67485: HTTP/HTTPS Traffic Interception Bypass in mad-proxy

A vulnerability in mad-proxy versions <= 0.3 allows attackers to bypass HTTP/HTTPS traffic interception rules, potentially exposing sensitive traffic.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-67485

CVE-2025-67485:

5.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mad-proxy	pip	<= 0.3

Technical Details

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Root Cause Analysis

The vulnerability is a bypass of the HTTP/HTTPS traffic interception in mad-proxy version 0.3 and older. The advisory mentions a patch in version 0.4, but no corresponding tag or commit could be found in the repository. The analysis is therefore based on the source code of the latest available version, which is consistent with the vulnerable version 0.3. The root cause of the vulnerability was identified in the request function within the mad_proxy/proxy_server.py file. This function is responsible for intercepting and blocking requests to certain domains. The vulnerability lies in the case-sensitive nature of the domain check: if domain in url:. An attacker can exploit this by using mixed-case characters in the domain name of the URL, which will not match the blocklist and thus bypass the filter. The vulnerable function is request as it contains this flawed logic.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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