Arbitrary File Upload in iCagenda Joomla Extension

Publication date: 2026-06-20

Last updated on: 2026-07-05

Assigner: Joomla! Project

Description

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-20

Last Modified

2026-07-05

Generated

2026-07-10

AI Q&A

2026-06-20

EPSS Evaluated

2026-07-09

NVD

CVE-2026-48939

EUVD

EUVD-2026-38109

Affected Vendors & Products

Vendor	Product	Version / Range
joomlic	icagenda	From 3.2.1 (inc) to 3.9.15 (exc)
joomlic	icagenda	From 4.0.0 (inc) to 4.0.8 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-434	The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Attack-Flow Graph

Impact Analysis

The vulnerability can have severe impacts because it allows remote attackers to execute arbitrary PHP code without any privileges or user interaction. This can lead to full system compromise, data theft, unauthorized access, or disruption of services on websites using the vulnerable iCagenda extension.

Executive Summary

This vulnerability exists in the iCagenda extension for Joomla. It allows an attacker to upload arbitrary files through the file attachment feature. Because of this, an attacker can upload and execute malicious PHP code on the affected system.

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