CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

A vulnerability has been found in Joomla CMS up to 3.9.1 (Content Management System) and classified as problematic. This vulnerability affects an unknown code block of the component Global Configuration. The manipulation with an unknown input leads to a cross site scripting vulnerability (Stored). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

An issue was discovered in Joomla! before 3.9.2. Inadequate checks of the Global Configuration helpurl settings allowed stored XSS.

The bug was discovered 01/01/2019. The weakness was published 01/16/2019 by Basti (Website). The advisory is shared for download at developer.joomla.org. This vulnerability was named CVE-2019-6262 since 01/14/2019. The attack can be initiated remotely. The requirement for exploitation is a single authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121188 (Joomla! < 3.9.2 Multiple Stored XSS Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13396 (Joomla! Core Stored XSS Vulnerabilities [20190101-20190104]).

Upgrading to version 3.9.2 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121188). Similar entries are available at 129819, 129821 and 129822.

Productinfo

Type

• Content Management System

Vendor

• Joomla

Name

• CMS

Version

• 3.9.0
• 3.9.1

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Stored
Class: Cross site scripting / Stored
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 121188
Nessus Name: Joomla! < 3.9.2 Multiple Stored XSS Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 3.9.2

Timelineinfo

01/01/2019 🔍
01/14/2019 +13 days 🔍
01/15/2019 +1 days 🔍
01/15/2019 +0 days 🔍
01/16/2019 +1 days 🔍
01/16/2019 +0 days 🔍
01/16/2019 +0 days 🔍
01/17/2019 +1 days 🔍
05/31/2020 +500 days 🔍

Sourcesinfo

Vendor: joomla.org

Advisory: developer.joomla.org
Researcher: Basti
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-6262 (🔍)
SecurityFocus: 106638 - Joomla! Core Multiple HTML Injection Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/17/2019 11:49
Updated: 05/31/2020 18:42
Changes: 01/17/2019 11:49 (75), 05/31/2020 18:42 (6)
Complete: 🔍

Discussion

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