Joomla 4.0.x < 5.4.7 / 6.0.x < 6.1.2 Joomla 6.1.2 & 5.4.7 Security & Bugfix Release (5955-joomla-6-1-2-5-4-7-security-bugfix-release)

medium Nessus Plugin ID 325458

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 5.4.7 or 6.0.x prior to 6.1.2. It is, therefore, affected by a vulnerability.

- An improper access check allows unauthorized users to create custom fields via webservices endpoints.
(CVE-2026-48958)

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 5.4.7 / 6.1.2 or later.

Plugin Details

Severity: Medium

ID: 325458

File Name: joomla_612.nasl

Version: 1.1

Type: Remote

Family: CGI abuses

Published: 7/7/2026

Updated: 7/7/2026

Configuration: Enable paranoid mode, Enable thorough checks (optional)

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-48958

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:joomla:joomla%5c%21

Required KB Items: installed_sw/Joomla!, www/PHP, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2026

Vulnerability Publication Date: 7/7/2026

Reference Information

CVE: CVE-2026-48958

Detections

Analytics