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CVE-2026-57827 PoC — Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12

Source
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-57827.yaml
Associated Vulnerability
Title: Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12 (CVE-2026-57827)
Description:Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12 - The Joomla extension RSFiles is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Description
RSFiles! (com_rsfiles) for Joomla < 1.17.12 allows unauthenticated arbitrary file upload via the rsfiles.upload task. The write method performs no authentication, CSRF token, or file extension checks, allowing upload of executable PHP files to the web-accessible downloads/ directory.
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