StyleSmuggler Magento and Adobe Commerce Zero-Day RCE Under ...

[carlospolop]

🤖 Automated Content Update

This PR was automatically generated by the HackTricks News Bot based on a technical blog post.

📝 Source Information

• Blog URL: https://sansec.io/research/stylesmuggler
• Blog Title: StyleSmuggler: Magento and Adobe Commerce Zero-Day RCE Under Active Attack
• Suggested Section: Pentesting Web > SSTI / Magento security for stored template poisoning; additionally Basic Forensic Methodology > Malware Analysis and Linux Hardening > Post-Exploitation for NTP-shaped C2, TracerPid anti-analysis, cron-spool persistence, process masquerading, and token-gated web-shell hunting

🎯 Content Summary

Overview

StyleSmuggler is an actively exploited, unpatched Magento Open Source and Adobe Commerce zero-day that gives unauthenticated remote attackers PHP code execution. The article does not assign a CVE and does not publish the complete gadget chain or a copy-and-paste exploit; Sansec states that a full breakdown will follow in an update.

Sansec reproduced the complete unauthenticated chain on clean installations of Magento Open Source 2.4.7, 2.4.8, an...

🔧 Technical Details

Stored template poisoning followed by server-side rendering: If attacker-controlled data is stored in reports, sessions, uploaded metadata, headers, or similar application records and is later inserted into a server-side template, an attacker may split exploitation into two requests. The first request places executable template or language syntax into a reachable data source; the second invokes a normal application workflow that renders that source. Execution occurs in the server-side renderer, so client interaction and successful delivery of the rendered output are unnecessary. Test all input paths and enforce safe handling both when data is stored and when it reaches the rendering sink.

Alternative poisoning locations: Blocking one storage path does not stop a multi-source template injection when the application can render data from sessions, reports, request headers, uploaded files, custom-option metadata, logs, or other writable records. A...

🤖 Agent Actions

Updated src/pentesting-web/ssti-server-side-template-injection/README.md.

Added:

• Stored/second-order SSTI through deferred rendering.
• Source → storage → rendering-sink testing methodology.
• Blind execution validation using unique OAST canaries.
• Alternative poisoning-location guidance.
• Magento StyleSmuggler as a concise real-world example.
• Detection and forensic evidence recommendations.
• Numbered Sansec reference and inline citations.

Validation passed with git diff --check; only the intended file was modified.

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This PR was automatically created by the HackTricks Feed Bot. Please review the changes carefully before merging.

[carlospolop]

🔗 Additional Context

Original Blog Post: https://sansec.io/research/stylesmuggler

Content Categories: Based on the analysis, this content was categorized under "Pentesting Web > SSTI / Magento security for stored template poisoning; additionally Basic Forensic Methodology > Malware Analysis and Linux Hardening > Post-Exploitation for NTP-shaped C2, TracerPid anti-analysis, cron-spool persistence, process masquerading, and token-gated web-shell hunting".

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Bot Version: HackTricks News Bot v1.0