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CVE-2026-92247 is an unrestricted file upload vulnerability in synaptikcms synaptik-cms through version 1.3.4.4. The vulnerability affects the Admin File Manager's rename functionality in admin/file-manager.php. Manipulation of the rename operation can bypass intended file-type restrictions and enable upload of unrestricted files. The issue is remotely exploitable, and public exploit information is available.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
The repository contains a README and one Python 3 exploit program, synaptik_rce.py. It is an operational authenticated RCE exploit for SynaptikCMS's administrative file manager, described as CVE-2026-92247. The script accepts a target base URL and administrator session cookie, uses requests to interact with /admin/file-manager.php, extracts an upload file identifier from responses, and follows an upload/finalization/rename chain. It uploads PHP command-execution content using a benign extension (default shell.txt), renames it to a PHP filename (default shell.php), and tests the resulting web shell using a c command parameter. It includes configurable names and temporary rename prefix, TLS-verification disablement, timeout and proxy support, verbose response output, an interactive command mode, fallback testing from /admin after a move operation, and optional cleanup. The exploit is not a framework module and is not merely a scanner: successful use yields arbitrary command execution in the web-server process context.
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