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CVE-2025-7840 is a cross-site scripting vulnerability in Campcodes Online Movie Theater Seat Reservation System 1.0. The issue affects an unspecified part of /index.php?page=reserve in the Reserve Your Seat Page. According to the available information, manipulation of the Firstname and Lastname arguments can result in script injection and execution in a victim's browser. The vulnerability is remotely exploitable, and public exploit disclosure has been reported.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a C-based proof-of-concept exploit for CVE-2025-7840, a Cross-Site Scripting (XSS) vulnerability in a web application's reservation form. The exploit targets the 'Firstname' parameter of the /index.php?page=reserve endpoint, which fails to sanitize user input, allowing arbitrary JavaScript injection. The main file, exploit.c, provides command-line options for specifying the target URL, custom payloads, cookie files for session handling, and verbose output. The exploit uses libcurl to send crafted GET requests with XSS payloads and can operate with default or user-supplied payloads. The README.md provides detailed usage instructions and example commands. No hardcoded IPs or domains are present; the user supplies the target URL. The repository is structured with a single exploit source file, a README, and a license. Its purpose is to demonstrate and test the XSS vulnerability in a controlled or authorized environment.
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