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CVE-2023-33831 is a remote command execution vulnerability in FUXA 1.1.13. The flaw is present in the /api/runscript endpoint, which can be abused through a crafted POST request to execute arbitrary operating system commands on the underlying host. Public reporting identifies the issue as a remote command execution or remote command injection condition affecting internet-exposed FUXA deployments, and exploit code has been publicly available. The vulnerability has also been observed in active exploitation attempts.
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What an attacker gets, and what they’ve been doing with it.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2023-33831, targeting FUXA version 1.1.13-1186. The exploit is implemented in Python and leverages an unauthenticated remote code execution vulnerability in the /api/runscript HTTP endpoint. The script takes attacker-supplied parameters for the target host and port, as well as the attacker's own host and port for a reverse shell. It crafts a POST request to the vulnerable endpoint, injecting a Node.js payload that executes a bash reverse shell, connecting back to the attacker's machine. The repository consists of the exploit script and a README file with usage instructions and a description of the vulnerability. The exploit is operational and provides a reverse shell if the target is vulnerable and accessible.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A FUXA vulnerability mentioned as having ongoing active exploitation attempts observed from November 2025 through the day before the report.
A FUXA vulnerability referenced as having ongoing active exploitation activity dating back to November 2025.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.