CVE-2026-61900: CWE-434 Unrestricted Upload of File with Dangerous Type in dj-extensions.com jDownloads extension for Joomla
The jDownloads extension for Joomla versions 4.1.0 through 4.1.5 contains a critical vulnerability allowing unauthenticated attackers to upload files of dangerous types without restriction. This vulnerability can lead to full remote code execution (RCE) on affected systems. The issue is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
CVE-2026-61900 is a critical vulnerability in the jDownloads extension for Joomla (versions 4.1.0 to 4.1.5) that permits unauthenticated attackers to upload files of dangerous types without restriction. This unrestricted file upload vulnerability can be exploited to achieve full remote code execution on the affected system. The vulnerability is categorized as CWE-434. As of the published date, no official fix or patch has been released by the vendor, and there are no known exploits in the wild.
Potential Impact
Successful exploitation of this vulnerability allows an unauthenticated attacker to upload malicious files, resulting in full remote code execution on the affected Joomla installation. This can lead to complete compromise of the web server and potentially the 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 jDownloads extension and consider disabling it if possible. Monitor official channels from dj-extensions.com and Joomla for updates and apply patches promptly once available.
CVE-2026-61900: CWE-434 Unrestricted Upload of File with Dangerous Type in dj-extensions.com jDownloads extension for Joomla
Description
The jDownloads extension for Joomla versions 4.1.0 through 4.1.5 contains a critical vulnerability allowing unauthenticated attackers to upload files of dangerous types without restriction. This vulnerability can lead to full remote code execution (RCE) on affected systems. The issue is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). No official patch or remediation guidance has been provided yet.
CVSS v4.0
Score 10.0critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-61900 is a critical vulnerability in the jDownloads extension for Joomla (versions 4.1.0 to 4.1.5) that permits unauthenticated attackers to upload files of dangerous types without restriction. This unrestricted file upload vulnerability can be exploited to achieve full remote code execution on the affected system. The vulnerability is categorized as CWE-434. As of the published date, no official fix or patch has been released by the vendor, and there are no known exploits in the wild.
Potential Impact
Successful exploitation of this vulnerability allows an unauthenticated attacker to upload malicious files, resulting in full remote code execution on the affected Joomla installation. This can lead to complete compromise of the web server and potentially the 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 jDownloads extension and consider disabling it if possible. Monitor official channels from dj-extensions.com and Joomla for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-07-12T05:35:55.728Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5e769c2a4a8d598996dc91
Added to database: 07/20/2026, 19:27:24 UTC
Last enriched: 07/20/2026, 20:12:32 UTC
Last updated: 07/21/2026, 09:31:54 UTC
Views: 14
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