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CVE-2022-25581 affects Classcms v2.5 and earlier. The vulnerability is an arbitrary file upload issue in the component class\classupload. According to the provided content, an attacker can upload a crafted .txt file and leverage that upload to achieve code injection. This indicates insufficient validation or restriction of uploaded file content and/or handling within the upload component, allowing attacker-controlled content to be accepted and subsequently executed or interpreted in a dangerous manner.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a Python exploit script (described in README.md) targeting CVE-2022-25581, an arbitrary file download vulnerability in ClassCMS 2.4. The exploit automates the process of logging into the ClassCMS admin panel, obtaining a CSRF token, and abusing a file download feature to upload and extract a malicious zip file (shell.zip) containing a PHP webshell (shell.php). The attack leverages a specially crafted URL (using the '@' character) to bypass host whitelist checks in PHP's parse_url() and curl, allowing the attacker to force the target to download the attacker's shell.zip. Once uploaded, the script attempts to access the webshell, granting the attacker remote code execution. The README includes detailed instructions for preparing the shell.zip, running the exploit, and necessary preconditions. The only file in the repository is README.md, which contains the full exploit code and usage guide. The exploit is operational, requiring some manual setup (hosting shell.zip, configuring target details), and provides a working webshell if successful.
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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.