Freaks City

Understanding SSRF Attacks Server-Side Request Forgery (SSRF) occurs when a application allows users to supply URLs or IP addresses that the server will then request data from. This vulnerability arises primarily when web applications provide functionality to fetch resources from external sources without properly validating or sanitizing the ta ...

The src attribute of an <img> tag can reference local files, inline base64 data, or execute asynchronous HTTP GET requests when pointing to a backend route. Routing this endpoint to return binary image data allows seamless integration with template rendering. To avoid filesystem overhead, generating verification images entirely in memory ...

Overview File upload vulnerabilities arise when web applications inadequately validate or sanitize user-supplied files before storing and serving them. Exploiting these flaws allows attackers to inject executable code—such as PHP webshells—into the server’s filesystem, often leading to remote code execution. Upload-Labs is a deliberately vulner ...

1 File Upload Vulnerability Overview File upload functionality is a common feature in virtually all web applications and server-client systems. Users need to upload images for articles and blog posts, profile pictures, or various files to cloud storage services. If servers lack proper filtering mechanisms, allowing webshells, executable files, ...