Joomla 3.9.x < 5.4.2 / 6.0.x < 6.0.2 Joomla 6.0.2 & 5.4.2 Security & Bugfix Release (5942-joomla-6-0-2-and-5-4-2-security-bugfix-release)

high Nessus Plugin ID 281853

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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 3.9.x prior to 5.4.2 or 6.0.x prior to 6.0.2. It is, therefore, affected by a vulnerability.

- Lack of output escaping leads to a XSS vector in the pagebreak plugin. (CVE-2025-63083)

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 5.4.2 / 6.0.2 or later.

Plugin Details

Severity: High

ID: 281853

File Name: joomla_602.nasl

Version: 1.3

Type: remote

Family: CGI abuses

Published: 1/6/2026

Updated: 2/18/2026

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

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Low

Score: 3.0

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-2025-63083

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

CVSS v4

Risk Factor: High

Base Score: 8.4

Threat Score: 5.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

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: 1/6/2026

Vulnerability Publication Date: 1/6/2026

Reference Information

CVE: CVE-2025-63083

IAVA: 2026-A-0011

Detections

Analytics