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CVE-2021-22941 is a critical vulnerability in Citrix ShareFile Storage Zones Controller before version 5.11.20. The flaw is in the NeatUpload library exposed through the ShareFile upload functionality, including the upload.aspx endpoint. Improper access control combined with path traversal allows an unauthenticated remote attacker to write arbitrary files to the underlying system. By placing attacker-controlled files in executable or otherwise useful locations, the issue can be escalated to remote code execution and full compromise of the storage zones controller.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a Python exploit script (exploit.py) targeting Citrix ShareFile (CVE-2021-22941) for remote code execution. The exploit works by uploading a malicious .cshtml payload to the /upload.aspx endpoint, which is then executed via the /configservice/Home/Error endpoint. The script supports three main actions: uploading the payload, executing arbitrary commands (such as ping), and deploying a web shell to the target server. The README provides usage instructions and a reference to a technical blog post. The exploit is operational, providing real command execution and shell deployment capabilities. The main endpoints targeted are /upload.aspx and /configservice/Home/Error, and the exploit is designed for Citrix ShareFile running on Windows.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical path traversal vulnerability in Citrix ShareFile Storage Zones Controller (before 5.11.20) via the NeatUpload library allows unauthenticated attackers to write arbitrary files and achieve remote code execution.
A broken access control vulnerability in Citrix ShareFile Storage Zones Controller that allows unauthorized access to files via crafted requests to the Upload.aspx endpoint.
Mentioned only as an external user tag with no discussion of the vulnerability itself.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.