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CVE-2025-47550 is an unrestricted file upload vulnerability in the Themefic Instantio product. According to the provided content, the flaw allows upload of a file with a dangerous type, specifically enabling an attacker to upload a web shell to the web server. The issue affects Instantio through version 3.3.16. Based on the available information, the vulnerability is consistent with insufficient validation or restriction of uploaded file types, permitting server-executable content to be stored in a location where it can be invoked.
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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-2025-47550, targeting the Instantio WordPress plugin (versions <= 3.3.16). The exploit is implemented in Python (CVE-2025-47550.py) and demonstrates an authenticated (admin+) arbitrary file upload vulnerability via the 'ins_options_save' action. The exploit script logs into the target WordPress instance as an administrator, extracts a required nonce from the plugin's settings page, and crafts a multipart/form-data POST request to upload a PHP web shell to the server. The shell is placed in a web-accessible directory (/wp-content/uploads/itinerary-fonts/shell.php), allowing the attacker to execute arbitrary system commands via HTTP GET requests. The README.md provides detailed usage instructions, manual exploitation steps, and code snippets from the vulnerable plugin. The exploit requires valid admin credentials and targets a specific plugin endpoint, making it a post-authentication attack. The repository is well-structured, with a single exploit script and comprehensive documentation.
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2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.