Joomla! prior to 3.9.3 Cross-Site Scripting (XSS) Vulnerability

medium Nessus Plugin ID 122420

Language:

Synopsis

The remote web server is running a version of Joomla! CMS which is affected by a cross-site scripting (XSS) vulnerability.

Description

According to its self-reported version number, the Joomla! installation running on the remote web server is prior to 3.9.3.

In versions prior to 3.9.3, a cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user's browser session.

Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Joomla! version 3.9.3 or later.

Plugin Details

Severity: Medium

ID: 122420

File Name: joomla_393_xss.nasl

Version: 1.5

Type: remote

Family: CGI abuses

Published: 2/25/2019

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-7742

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

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: 2/12/2019

Vulnerability Publication Date: 9/24/2018

Reference Information

CVE: CVE-2019-7742

BID: 107019

Detections

Analytics