Security Announcements

This feed provides announcements of resolved security issues in Joomla! software releases.

For more information about the Joomla! Security Strike Team (JSST) and its processes, please review our Security article.

To report potential security issues, please follow the guidelines in the above referenced article. Please note that we are only able to provide support for the Joomla! CMS, Joomla! Framework, and *.joomla.org network of websites.

You can subscribe to notifications from this feed through a RSS reader.

Project: Joomla!
SubProject: CMS
Impact: Moderate
Severity: Low
Versions: 2.5.0 through 3.8.12
Exploit type: Incorrect Access Control
Reported Date: 2018-September-17
Fixed Date: 2018-October-02
CVE Number: CVE-2018-17859

Description

Inadequate checks in com_contact could allowed mail submission in disabled forms.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.8.12

Solution

Upgrade to version 3.8.13

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin (JSST)

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 3.7.0 through 3.8.11
Exploit type: ACL Violation
Reported Date: 2018-July-10
Fixed Date: 2018-August-28
CVE Number: CVE-2018-15881

Description

Inadequate checks regarding disabled fields can lead to an ACL violation.

Affected Installs

Joomla! CMS versions 3.7.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Elisa Foltyn, COOLCAT CREATIONS

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 1.5.0 through 3.8.11
Exploit type: XSS
Reported Date: 2018-July-10
Fixed Date: 2018-August-28
CVE Number: CVE-2018-15880

Description

Inadequate output filtering on the user profile page could lead to a stored XSS attack.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Fouad Maakor

Project: Joomla!
SubProject: CMS
Impact: High
Severity: Low
Versions: 1.5.0 through 3.8.11
Exploit type: Malicious file upload
Reported Date: 2018-August-23
Fixed Date: 2018-August-28
CVE Number: CVE-2018-15882

Description

Inadequate checks in the InputFilter class could allow specifically prepared PHAR files to pass the upload filter.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Davide Tampellini

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 1.6.0 through 3.8.8
Exploit type: XSS
Reported Date: 2018-May-07
Fixed Date: 2018-June-26
CVE Number: CVE-2018-12711

Description

In some cases the link of the current language might contain unescaped HTML special characters. This may lead to reflective XSS via injection of arbitrary parameters and/or values on the current page url.

Affected Installs

Joomla! CMS versions 1.6.0 through 3.8.8

Solution

Upgrade to version 3.8.9

Contact

The JSST at the Joomla! Security Centre.

Reported By: Borja Lorenzo, Innotecsystem

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 2.5.0 through 3.8.8
Exploit type: LFI
Reported Date: 2018-April-23
Fixed Date: 2018-June-26
CVE Number: CVE-2018-12712

Description

Our autoload code checks classnames to be valid, using the "class_exists" function in PHP. In PHP 5.3 this function validates invalid names as valid, which can result in a Local File Inclusion.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.8.8

Solution

Upgrade to version 3.8.9

Contact

The JSST at the Joomla! Security Centre.

Reported By: Davide Tampellini

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 1.5.0 through 3.8.7
Exploit type: XSS
Reported Date: 2017-October-28
Fixed Date: 2018-May-22
CVE Number: CVE-2018-6378

Description

Inadequate filtering of file and folder names lead to various XSS attack vectors in the media manager.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.7

Solution

Upgrade to version 3.8.8

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin, JSST

Project: Joomla!
SubProject: CMS
Impact: Low
Severity: Low
Versions: 3.1.2 through 3.8.7
Exploit type: XSS
Reported Date: 2018-March-30
Fixed Date: 2018-May-22
CVE Number: CVE-2018-11328

Description

Under specific circumstances (a redirect issued with a URI containing a username and password when the Location: header cannot be used), a lack of escaping the user-info component of the URI could result in a XSS vulnerability.

Affected Installs

Joomla! CMS versions 3.1.2 through 3.8.7

Solution

Upgrade to version 3.8.8

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin, JSST

Project: Joomla!
SubProject: CMS
Impact: Medium
Severity: Low
Versions: 3.0.0 through 3.8.7
Exploit type: Session race condition
Reported Date: 2017-July-08
Fixed Date: 2018-May-22
CVE Number: CVE-2018-11324

Description

A long running background process, such as remote checks for core or extension updates, could create a race condition where a session which was expected to be destroyed would be recreated.

Affected Installs

Joomla! CMS versions 3.0.0 through 3.8.7

Solution

Upgrade to version 3.8.8

Additional Resources

More details about the Session deletion race condition

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin, JSST

Project: Joomla!
SubProject: CMS
Impact: Moderate
Severity: Low
Versions: 3.7.0 through 3.8.7
Exploit type: Remote Code Execution
Reported Date: 2018-May-14
Fixed Date: 2018-May-22
CVE Number: CVE-2018-11321

Description

Inadequate filtering allows users authorised to create custom fields to manipulate the filtering options and inject an unvalidated option.

Affected Installs

Joomla! CMS versions 3.7.0 through 3.8.7

Solution

Upgrade to version 3.8.8

Contact

The JSST at the Joomla! Security Centre.

Reported By: Benjamin Trenkle, JSST

Page 14 of 28