Users often search for "v3.1" when referring to major historical PHP exploits. A highly critical exploit in this category is the PHPMailer Remote Code Execution (RCE), which affected versions before 5.2.18. Exploit-DB The Exploit : This vulnerability exploited the variable in the
1. Potential Vulnerability: CodeIgniter 3.1.x Form Validation CodeIgniter 3.1.x Form Validation class provides a server-side framework for sanitizing inputs. CodeIgniter : Vulnerabilities in this version typically arise from improper implementation php email form validation - v3.1 exploit
function. Attackers could craft a malicious email address that included command-line flags for the system's sendmail binary. : By using the Users often search for "v3
To secure your PHP email forms against these types of exploits, follow these standards: Potential Vulnerability: CodeIgniter 3
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
(often confused due to versioning) that leads to Remote Code Execution (RCE).
PHPMailer < 5.2.18 Remote Code Execution exploit ... - GitHub