Joomla CMS up to 3.9.1 Global Configuration Stored cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Joomla CMS up to 3.9.1. Affected is an unknown function of the component Global Configuration. The manipulation leads to cross site scripting (Stored). This vulnerability is documented as CVE-2019-6263. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Joomla CMS up to 3.9.1 (Content Management System) and classified as problematic. This issue affects some unknown processing of the component Global Configuration. The manipulation with an unknown input leads to a cross site scripting vulnerability (Stored). Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

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

The bug was discovered 01/01/2019. The weakness was released 01/16/2019 by Basti (Website). The advisory is shared at developer.joomla.org. The identification of this vulnerability is CVE-2019-6263 since 01/14/2019. The attack may be initiated remotely. Required for exploitation is a simple authentication. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. 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 databases at Exploit-DB (46200), Tenable (121188) and SecurityFocus (BID 106638†). Entries connected to this vulnerability are available at VDB-129819, VDB-129820 and VDB-129822. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Stored
Class: Cross site scripting / Stored
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

Exploit-DB: 🔍

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 🔍
08/27/2025 +2414 days 🔍

Sourcesinfo

Vendor: joomla.org

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

CVE: CVE-2019-6263 (🔍)
GCVE (CVE): GCVE-0-2019-6263
GCVE (VulDB): GCVE-100-129821
SecurityFocus: 106638 - Joomla! Core Multiple HTML Injection Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/17/2019 11:49
Updated: 08/27/2025 18:51
Changes: 01/17/2019 11:49 (76), 05/31/2020 18:48 (9), 08/27/2025 18:51 (16)
Complete: 🔍
Cache ID: 216::103

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