CVE-2026-28274

EIP tracks 1 public exploit for CVE-2026-28274. PoCs published by G3XAR.

AI-analyzed exploit summary The repository contains a functional proof-of-concept for CVE-2026-28274, demonstrating a stored XSS vulnerability in the 'Initiative' application via malicious HTML file uploads. The PoC includes a crafted HTML file with JavaScript payload for token theft and detailed steps for exploitation.

Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 are vulnerable to Stored Cross-Site Scripting (XSS) in the document upload functionality. Any user with upload permissions within the "Initiatives" section can upload a malicious `.html` or `.htm` file as a document. Because the uploaded HTML file is served under the application's origin without proper sandboxing, the embedded JavaScript executes in the context of the application. As a result, authentication tokens, session cookies, or other sensitive data can be exfiltrated to an attacker-controlled server. Additionally, since the uploaded file is hosted under the application's domain, simply sharing the direct file link may result in execution of the malicious script when accessed. Version 0.32.4 fixes the issue.