Actively exploited in the wild
iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
iCagenda - iCagenda · Listed in the CISA KEV since 2026-07-10. This indicates confirmed attacks in production environments.
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CVE-2026-48939
CriticalCVSS 9.8KEVExploitation Probability (EPSS)
Elevated risk71th percentile - higher than 71% of all known CVEs
Summary
A vulnerability in the iCagenda extension for Joomla allows arbitrary file upload in the file attachment feature, leading to PHP code upload and execution.
Risk Assessment
An attacker can take over the Joomla server, execute malicious code, and access sensitive data or disrupt the website.
Recommendation
Update the iCagenda extension to the latest version that fixes this vulnerability, and restrict file upload permissions to trusted users only.
Original NVD description (English source)
A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.