Session Reaper

A Magento 2 security module that disables the unauthenticated customer address file upload endpoint to protect against CVE-2025-54236 (SessionReaper) and related file upload vulnerabilities.

Since Searchlight Cyber published a technical write up and proof-of-concept for the SessionReaper vulnerability, attackers have been mass scanning Magento / Adobe Commerce stores for vulnerable targets. The first phase of the attack involves uploading a payload containing malicious session data to the server.

A recent vulnerability in Adobe's e-commerce platform, identified as CVE-2025-54236, poses risks of remote code execution, particularly through file-based session storage, which can be exploited by unauthenticated users. The article analyzes the patch related to this vulnerability, its deserialization mechanisms, and offers insights into potential exploitation methods and vulnerabilities remaining in the application. The narrative provides a deep dive into the exploit chain and necessary payloads while exploring the implications of session management and type handling in the context of security.