Description

This web application is vulnerable to Email Header Injection. Email Header Injection is a security vulnerability that allows a malicious user to tamper with the email messages that are sent from the web application by injecting additional SMTP/IMAP headers. A malicious spammer could potentially use this tactic to send large numbers of messages anonymously.

Remediation

You need to restrict CR(0x13) and LF(0x10) from the user input. Check references for more information about fixing this vulnerability.

References

Email Injection

PHP mail() Header Injection Through Subject and To Parameters

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Severity

High

Classification

CWE-20 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Abuse Of Functionality