CVE-2026-57827: CWE-434: Unrestricted Upload of File with Dangerous Type in rsjoomla.com rsjoomla.com RSFiles extension for Joomla
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.
AI Analysis
Technical Summary
CVE-2026-57827 is a critical vulnerability in the rsjoomla.com RSFiles extension for Joomla, affecting versions 1.0 through 1.17.11. It allows unauthenticated attackers to upload files of dangerous types, including executable files, due to insufficient restrictions on file uploads. Successful exploitation results in full remote code execution on the target system. The vulnerability is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker can upload arbitrary executable files without authentication, leading to full remote code execution on the affected Joomla site. This compromises the confidentiality, integrity, and availability of the system, potentially allowing complete takeover of the web server and underlying infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the RSFiles upload functionality, disable the component if possible, or implement web application firewall (WAF) rules to block malicious file uploads. Monitor vendor channels for updates and apply patches promptly once available.
CVE-2026-57827: CWE-434: Unrestricted Upload of File with Dangerous Type in rsjoomla.com rsjoomla.com RSFiles extension for Joomla
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.
CVSS v4.0
Score 10.0critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57827 is a critical vulnerability in the rsjoomla.com RSFiles extension for Joomla, affecting versions 1.0 through 1.17.11. It allows unauthenticated attackers to upload files of dangerous types, including executable files, due to insufficient restrictions on file uploads. Successful exploitation results in full remote code execution on the target system. The vulnerability is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). The CVSS 4.0 vector indicates network attack vector, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker can upload arbitrary executable files without authentication, leading to full remote code execution on the affected Joomla site. This compromises the confidentiality, integrity, and availability of the system, potentially allowing complete takeover of the web server and underlying infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the RSFiles upload functionality, disable the component if possible, or implement web application firewall (WAF) rules to block malicious file uploads. Monitor vendor channels for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-06-25T16:55:04.093Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a52115968715ace4397c664
Added to database: 07/11/2026, 09:48:09 UTC
Last enriched: 08/12/2026, 16:34:07 UTC
Last updated: 08/25/2026, 10:52:10 UTC
Views: 36529
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