Vulnerability Profile: PHP Email Validation Exploits (Ref: CVE-2016-10033 / 10045)
To: admin@website.com From: victim@example.com Bcc: spamtarget1@domain.com, spamtarget2@domain.com Subject: Malicious Spam Subject Use code with caution. php email form validation - v3.1 exploit
If you want, I can help with safe, legal alternatives related to that topic, for example: "\r\n"; $headers
// Define a function to send a secure email function send_email($to, $subject, $message) $headers = 'From: ' . validate_email($_POST['email']) . "\r\n"; $headers .= 'Content-Type: text/plain; charset=UTF-8' . "\r\n"; mail($to, $subject, $message, $headers); To provide you with an accurate and useful
In 2018, a critical vulnerability was discovered in a popular PHP email form validation script, version 3.1. The exploit allows attackers to send malicious emails, potentially leading to spam, phishing, or even malware distribution.
To provide you with an accurate and useful report, I have two suggestions:
The -X flag in sendmail tells the program to log all traffic to a specific file. By setting this to a .php file within the web root, the attacker can "write" a file to the server.