CVE-2026-57828: CWE-434: Unrestricted Upload of File with Dangerous Type in phoca.cz phoca.cz Phoca Download extension for Joomla
Joomla Extension - phoca.cz - Authenticated file upload in Phoca Downloads component < 6.1.3 - The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.
AI Analysis
Technical Summary
The Phoca Download extension for Joomla (versions 1.0 to 6.1.2) contains an authenticated file upload vulnerability (CWE-434) in its RSFiles component. This vulnerability permits registered users to upload arbitrary executable files without proper restrictions, which can lead to full remote code execution on the affected system. The vulnerability has been assigned CVE-2026-57828 and carries a critical severity rating with a CVSS 4.0 score of 9. The vendor has not yet published an official fix or remediation level for this issue.
Potential Impact
Exploitation of this vulnerability allows authenticated users to upload executable files, which can result in full remote code execution on the Joomla server hosting the Phoca Download extension. This could lead to complete compromise of the affected system, including unauthorized access, data theft, or further attacks within the network.
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 Phoca Download extension to trusted users only, and consider disabling file upload functionality if possible. Monitor for updates from the vendor regarding patches or official mitigations.
CVE-2026-57828: CWE-434: Unrestricted Upload of File with Dangerous Type in phoca.cz phoca.cz Phoca Download extension for Joomla
Description
Joomla Extension - phoca.cz - Authenticated file upload in Phoca Downloads component < 6.1.3 - The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.
CVSS v4.0
Score 9.0critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Phoca Download extension for Joomla (versions 1.0 to 6.1.2) contains an authenticated file upload vulnerability (CWE-434) in its RSFiles component. This vulnerability permits registered users to upload arbitrary executable files without proper restrictions, which can lead to full remote code execution on the affected system. The vulnerability has been assigned CVE-2026-57828 and carries a critical severity rating with a CVSS 4.0 score of 9. The vendor has not yet published an official fix or remediation level for this issue.
Potential Impact
Exploitation of this vulnerability allows authenticated users to upload executable files, which can result in full remote code execution on the Joomla server hosting the Phoca Download extension. This could lead to complete compromise of the affected system, including unauthorized access, data theft, or further attacks within the network.
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 Phoca Download extension to trusted users only, and consider disabling file upload functionality if possible. Monitor for updates from the vendor regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-06-25T16:55:04.094Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a52115968715ace4397c668
Added to database: 07/11/2026, 09:48:09 UTC
Last enriched: 08/12/2026, 16:35:26 UTC
Last updated: 08/24/2026, 11:16:54 UTC
Views: 216
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