Detections
Analytics
Joomla! Extension 'iCagenda' 3.2.1 < 3.9.15 / 4.x < 4.0.8 Arbitrary Files Upload
critical Nessus Plugin ID 330625
Synopsis
The remote Joomla! application has an extension installed that is affected by an arbitrary files upload vulnerability.Description
The version of the iCagenda extension for the Joomla! application running on the remote host is 3.2.1 prior to 3.9.15 or 4.x prior to 4.0.8. It is, therefore, affected by an arbitrary files upload vulnerability in the file attachment feature, ultimately resulting in PHP code upload and execution.Note that Nessus has not tested for this issue but has instead relied only on the extension's self-reported version number.
Solution
Upgrade the iCagenda extension to version 3.9.15, 4.0.8 or later through the administrative dashboard.See Also
https://mysites.guru/blog/icagenda-zero-day-file-upload-rce/
https://www.icagenda.com/docs/changelog/icagenda-3-9-15
Plugin Details
Severity: Critical
ID: 330625
File Name: joomla_extension_icagenda_4_0_8.nasl
Version: 1.1
Type: Remote
Family: CGI abuses
Published: 7/29/2026
Updated: 7/29/2026
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus
Enable CGI Scanning: true
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
Percentile: 99.76
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-48939
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4
Risk Factor: Critical
Base Score: 10
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability Information
CPE: cpe:/a:joomla:joomla%5c%21
Required KB Items: installed_sw/Joomla!, www/PHP
Vulnerability Publication Date: 6/15/2026
CISA Known Exploited Vulnerability Due Dates: 7/13/2026
Reference Information
CVE: CVE-2026-48939