Joomla CMS up to 3.9.1 mod_banners Stored cross site scripting
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.9 | $0-$5k | 0.00 |
A vulnerability was found in Joomla CMS up to 3.9.1 (Content Management System). It has been classified as problematic. Affected is an unknown function of the component mod_banners. The manipulation with an unknown input leads to a cross site scripting vulnerability (Stored). CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:
An issue was discovered in Joomla! before 3.9.2. Inadequate escaping in mod_banners leads to a stored XSS vulnerability.
The bug was discovered 01/01/2019. The weakness was disclosed 01/16/2019 by Basti (Website). The advisory is available at developer.joomla.org. This vulnerability is traded as CVE-2019-6264 since 01/14/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
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 $5k-$25k. 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). The entries 129819, 129820 and 129821 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.2VulDB Meta Temp Score: 5.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: StoredClass: Cross site scripting / Stored
CWE: CWE-79 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: CMS 3.9.2
Timeline
01/01/2019 🔍01/14/2019 🔍
01/15/2019 🔍
01/15/2019 🔍
01/16/2019 🔍
01/16/2019 🔍
01/16/2019 🔍
01/17/2019 🔍
05/31/2020 🔍
Sources
Vendor: joomla.orgAdvisory: developer.joomla.org
Researcher: Basti
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-6264 (🔍)
SecurityFocus: 106638 - Joomla! Core Multiple HTML Injection Vulnerabilities
See also: 🔍
Entry
Created: 01/17/2019 11:49Updated: 05/31/2020 18:55
Changes: 01/17/2019 11:49 (75), 05/31/2020 18:55 (6)
Complete: 🔍
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