Executive Summary

This vulnerability is a Host Header Injection in the password reset functionality of CraftMyCMS 4.0.2.2. The system uses the HTTP Host header directly to create password reset links sent via email. An attacker can manipulate this Host header to craft malicious reset links, which can be used for phishing attacks or to take over user accounts.

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Impact Analysis

The vulnerability can allow attackers to send malicious password reset links to users, potentially leading to phishing attacks or unauthorized account takeover, compromising user accounts and system security.

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Mitigation Strategies

To mitigate this vulnerability, avoid using the HTTP Host header directly when constructing password reset links. Instead, use a fixed, trusted hostname or validate and sanitize the Host header before use. Additionally, consider implementing strict validation on the Host header or configuring the application to use a predefined base URL for password reset links to prevent Host Header Injection attacks.

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