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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.

[20190303] - Core - XSS in media form field

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0 through 3.9.3
  • Exploit type: XSS
  • Reported Date: 2019-February-25
  • Fixed Date: 2019-March-12
  • CVE Number: CVE-2019-9714

Description

The media form field lacks escaping, leading to a XSS vulnerability.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.3

Solution

Upgrade to version 3.9.4

Contact

The JSST at the Joomla! Security Centre.

Reported By: Fouad Maakor

[20190302] - Core - XSS in item_title layout

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0 through 3.9.3
  • Exploit type: XSS
  • Reported Date: 2019-February-25
  • Fixed Date: 2019-March-12
  • CVE Number: CVE-2019-9711

Description

The item_title layout in edit views lacks escaping, leading to a XSS vulnerability.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.3

Solution

Upgrade to version 3.9.4

Contact

The JSST at the Joomla! Security Centre.

Reported By: Fouad Maakor

[20190301] - Core - XSS in com_config JSON handler

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.2.0 through 3.9.3
  • Exploit type: XSS
  • Reported Date: 2019-March-04
  • Fixed Date: 2019-March-12
  • CVE Number: CVE-2019-9712

Description

The JSON handler in com_config lacks input validation, leading to XSS vulnerability.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.3

Solution

Upgrade to version 3.9.4

Contact

The JSST at the Joomla! Security Centre.

Reported By: Mario Korth, Hackmanit

[20190206] - Core - Implement the TYPO3 PHAR stream wrapper

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.2
  • Exploit type: Object Injection
  • Reported Date: 2019-January-18
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7743

Description

The phar:// stream wrapper can be used for objection injection attacks. We now disallow usage of the phar:// handler for non .phar-files within the CMS globally by implementing the TYPO3 PHAR stream wrapper.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin (JSST)

[20190205] - Core - XSS Issue in core.js writeDynaList

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.2
  • Exploit type: XSS
  • Reported Date: 2018-October-07
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7740

Description

Inadequate parameter handling in JS code could lead to an XSS attack vector.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: Dimitris Grammatikogiannis

[20190204] - Core - Stored XSS issue in the Global Configuration help url #2

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.2
  • Exploit type: XSS
  • Reported Date: 2019-January-16
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7741

Description

Inadequate checks at the Global Configuration helpurl settings allowed a stored XSS.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: Antonin Steinhauser

[20190203] - Core - Additional warning in the Global Configuration textfilter settings

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.2
  • Exploit type: XSS
  • Reported Date: 2019-January-17
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7739

Description

"No Filtering" textfilter overrides child settings in the Global Configuration. This is intended behavior but might be unexpected for the user. An additional message is now shown in the configuration dialog.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: Raviraj Powar

[20190202] - Core - Browserside mime-type sniffing causes XSS attack vectors

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 1.0.0 through 3.9.2
  • Exploit type: XSS
  • Reported Date: 2018-September-24
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7742

Description

A combination of specific webserver configurations, in connection with specific file types and browserside mime-type sniffing causes a XSS attack vector.

Affected Installs

Joomla! CMS versions 1.0.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hanno Böck

[20190201] - Core - Lack of URL filtering in various core components

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.2
  • Exploit type: XSS
  • Reported Date: 2018-November-13
  • Fixed Date: 2019-February-12
  • CVE Number: CVE-2019-7744

Description

Inadequate filtering on URL fields in various core components could lead to an XSS vulnerability.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.2

Solution

Upgrade to version 3.9.3

Contact

The JSST at the Joomla! Security Centre.

Reported By: Antonin Steinhauser

[20190104] - Core - Stored XSS issue in the Global Configuration help url

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.1
  • Exploit type: XSS
  • Reported Date: 2018-December-05
  • Fixed Date: 2019-January-15
  • CVE Number: CVE-2019-6262

Description

Inadequate checks at the Global Configuration helpurl settings allowed a stored XSS.

Affected Installs

Joomla! CMS versions 2.5.0 through 3.9.1

Solution

Upgrade to version 3.9.2

Contact

The JSST at the Joomla! Security Centre.

Reported By: Mario Korth, Hackmanit

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