Detections
Analytics
Joomla 4.0.x < 5.4.4 / 6.0.x < 6.0.4 Joomla 6.0.4 & 5.4.4 Security & Bugfix Release (5944-joomla-6-0-4-5-4-4-security-bugfix-release)
high Nessus Plugin ID 304414
Language:
Synopsis
A PHP application running on the remote web server is affected by a vulnerability.Description
According to its self-reported version, the instance of Joomla! running on the remote web server is 4.0.x prior to 5.4.4 or 6.0.x prior to 6.0.4. It is, therefore, affected by a vulnerability.- An improper access check allows unauthorized access to webservice endpoints. (CVE-2026-23899)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Joomla! version 5.4.4 / 6.0.4 or later.See Also
http://www.nessus.org/u?e4a1471d
http://www.nessus.org/u?eb84d913
http://www.nessus.org/u?048a2b15
http://www.nessus.org/u?46246a25
http://www.nessus.org/u?89243ed6
Plugin Details
Severity: High
ID: 304414
File Name: joomla_604.nasl
Version: 1.4
Type: Remote
Family: CGI abuses
Published: 3/31/2026
Updated: 4/13/2026
Configuration: Enable paranoid mode, Enable thorough checks (optional)
Supported Sensors: Nessus
Enable CGI Scanning: true
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 9
Temporal Score: 6.7
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-23899
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.6
Threat Score: 6.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/a:joomla:joomla%5c%21
Required KB Items: www/PHP, Settings/ParanoidReport, installed_sw/Joomla!
Exploit Ease: No known exploits are available
Patch Publication Date: 3/31/2026
Vulnerability Publication Date: 3/31/2026
Reference Information
CVE: CVE-2026-23899
IAVA: 2026-A-0288