Semgrep Scan Exposes Critical SSRF Vulnerabilities in PHP Code

A Semgrep security scan has flagged critical Server-Side Request Forgery (SSRF) vulnerabilities in a PHP codebase. The automated detection reveals that user-controlled input is being passed directly into network functions without any validation, creating a direct path for attackers to force the server to make unauthorized requests to internal systems or external hosts.

The specific findings center on the file `example-codes/index5.php`. On lines 15 and 16, the variables `$sorunlu` and `$sorunlu2`—both containing user-supplied data—are fed directly into `curl_init()` calls. This pattern represents a classic SSRF flaw, where an attacker can manipulate these inputs to target sensitive internal infrastructure, such as cloud metadata services, databases, or other backend systems accessible from the server.

This automated finding, generated by a GitHub Actions workflow, highlights a persistent and high-risk security oversight in application development. Unvalidated user input reaching core networking functions is a severe misconfiguration that can lead to data exfiltration, internal network reconnaissance, or service disruption. The presence of two identical vulnerabilities in close proximity suggests a systemic lack of input sanitization in the codebase, demanding immediate remediation to prevent potential exploitation.