tags into name or message fields. If the PHP script echoes this data back to a page without using htmlspecialchars() , the script executes in the user's browser. 2. The "v3.1" Confusion: PHPMailer RCE (CVE-2016-10033)
rather than a flaw in the library itself. If a developer fails to use the library's built-in sanitization functions htmlspecialchars() ), they leave the form open to Cross-Site Scripting (XSS) SQL Injection The Exploit : Attackers may inject php email form validation - v3.1 exploit
), which would be written to that file, effectively creating a Exploit-DB 3. Prevention & Remediation Guide tags into name or message fields
file in a web-accessible directory. They would then send a message body containing a PHP payload (like The "v3
flag, an attacker could force the server to log all traffic to a specific
function. Attackers could craft a malicious email address that included command-line flags for the system's sendmail binary. : By using the
While there is no single widely documented exploit titled "PHP Email Form Validation v3.1," this specific version number is associated with various frameworks and historical vulnerabilities. The most likely candidates for this query are the CodeIgniter 3.1.x validation class or a specific vulnerability in