CVE-2026-78074
8.8miniOrange · miniOrange Oauth Client and various free Joomla extensions
A missing authentication check in multiple free miniOrange Joomla extensions allows unauthenticated attackers to remotely deinstall arbitrary extensions from the affected site.
Executive summary
An unauthenticated remote code execution vulnerability in several free miniOrange Joomla extensions allows attackers to delete installed extensions, potentially leading to total service disruption.
Vulnerability
This vulnerability is caused by improper access control (CWE-284) where a missing authentication check allows unauthenticated remote actors to trigger the deinstallation of arbitrary extensions.
Business impact
The ability for an unauthenticated actor to arbitrarily remove extensions poses a severe threat to operational continuity and site integrity. A successful exploit can lead to immediate service outages, loss of critical security or functional plugins, and potential site defacement or secondary compromise. Given the CVSS score of 8.8, this flaw is categorized as high severity and requires immediate attention to prevent unauthorized administrative actions.
Remediation
Immediate Action: Identify if any of the listed miniOrange free extensions are installed and remove them or disable the affected functionality until a vendor-supplied patch is confirmed.
Proactive Monitoring: Review web server access logs for unusual POST requests targeting extension management endpoints or unexpected deinstallation logs within the Joomla administrator interface.
Compensating Controls: Deploy a Web Application Firewall (WAF) rule to block unauthorized access to the specific administrative modules responsible for extension management.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Given the high CVSS score and the ease of exploitation due to the lack of authentication, organizations using these free miniOrange plugins must act decisively. Administrators should audit their Joomla environments to locate these specific versions and prioritize the removal of the vulnerable extensions if no official patch is available from the vendor. Failure to address this could result in significant, unauthenticated disruption to the Joomla platform.
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Sources
Originally found and disclosed by Krzysztof Zając, CERT PL, per the CVE Program record.