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.

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  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0-3.9.11
  • Exploit type: XSS
  • Reported Date: 2019-August-28
  • Fixed Date: 2019-September-24
  • CVE Number: CVE-2019-16725

Description

Inadequate escaping allowed XSS attacks using the logo parameter of the default templates.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.11

Solution

Upgrade to version 3.9.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Aswin M Guptha
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 1.6.2 - 3.9.10
  • Exploit type: Incorrect Access Control
  • Reported Date: 2019-April-09
  • Fixed Date: 2019-August-13
  • CVE Number: CVE-2019-15028

Description

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

Affected Installs

Joomla! CMS versions 1.6.2 - 3.9.10

Solution

Upgrade to version 3.9.11

Contact

The JSST at the Joomla! Security Centre.

Reported By: Sergey Brester
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.9.7 - 3.9.8
  • Exploit type: Remote Code Execution
  • Reported Date: 2019-June-20
  • Fixed Date: 2019-July-09
  • CVE Number: CVE-2019-14654

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 3.9.7 - 3.9.8

Solution

Upgrade to version 3.9.9

Contact

The JSST at the Joomla! Security Centre.

Reported By: Benjamin Trenkle, JSST
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.8.13 through 3.9.6
  • Exploit type: Incorrect Access Control
  • Reported Date: 2019-April-10
  • Fixed Date: 2019-June-11
  • CVE Number: CVE-2019-12764

Description

The update server URL of com_joomlaupdate can be manipulated by non Super-Admin users.

Affected Installs

Joomla! CMS versions 3.8.13 through 3.9.6

Solution

Upgrade to version 3.9.7

Contact

The JSST at the Joomla! Security Centre.

 
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.6.0 through 3.9.6
  • Exploit type: XSS
  • Reported Date: 2019-January-01
  • Fixed Date: 2019-June-11
  • CVE Number: CVE-2019-12766

Description

The subform fieldtype does not sufficiently filter or validate input of subfields, this leads to XSS attack vectors.

Affected Installs

Joomla! CMS versions 3.6.0 through 3.9.6

Solution

Upgrade to version 3.9.7

Contact

The JSST at the Joomla! Security Centre.

Reported By: Volkmar Schlothauer, ghsvs.de
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.9.0 through 3.9.6
  • Exploit type: CSV Injection
  • Reported Date: 2019-April-29
  • Fixed Date: 2019-June-11
  • CVE Number: CVE-2019-12765

Description

The CSV export of com_actionslogs is vulnerable to CSV injection.

Affected Installs

Joomla! CMS versions 3.9.0 through 3.9.6

Solution

Upgrade to version 3.9.7

Contact

The JSST at the Joomla! Security Centre.

Reported By: Jose Antonio Rodriguez Garcia and Phil Keeble (MWR InfoSecurity)
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.9.3 through 3.9.5
  • Exploit type: Object Injection
  • Reported Date: 2019-March-27
  • Fixed Date: 2019-May-07

Description

In Joomla 3.9.3, the vulnerability of insecure deserialization when executing Phar archives was addressed by removing the known attack vector in the Joomla core. In order to intercept file invocations like file_exists or stat on compromised Phar archives the base name has to be determined and checked before allowing to be handled by PHP Phar stream handling. The used implementation however is vulnerable to path traversal leading to scenarios where the Phar archive to be assessed is not the actual (compromised) file.

Affected Installs

Joomla! CMS versions 3.9.3 through 3.9.5

Solution

Upgrade to version 3.9.6

Contact

The JSST at the Joomla! Security Centre.

Reported By: Daniel le Gall, Fix coordinated by Oliver Hader from TYPO3
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 1.7.0 through 3.9.5
  • Exploit type: XSS
  • Reported Date: 2019-April-29
  • Fixed Date: 2019-May-07
  • CVE Number: CVE-2019-11809

Description

The debug views of com_users do not properly escape user supplied data, which leads to a potential XSS attack vector.

Affected Installs

Joomla! CMS versions 1.7.0 through 3.9.5

Solution

Upgrade to version 3.9.6

Contact

The JSST at the Joomla! Security Centre.

Reported By: Jose Antonio Rodriguez Garcia and Phil Keeble (MWR InfoSecurity)
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Moderate
  • Versions: 3.0.0 through 3.9.4
  • Exploit type: XSS
  • Reported Date: 2019-March-25
  • Fixed Date: 2019-April-09
  • CVE Number: CVE-2019-11358

Description

The $.extend method of JQuery is vulnerable to Object.prototype pollution attacks.

Affected Installs

Joomla! CMS versions 3.0.0 through 3.9.4

Solution

Upgrade to version 3.9.5

Contact

The JSST at the Joomla! Security Centre.

Reported By: Michał Gołębiowski-Owczarek, David Jardin (JSST)
  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: High
  • Versions: 3.2.0 through 3.9.4
  • Exploit type: ACL Violation
  • Reported Date: 2019-March-13
  • Fixed Date: 2019-April-08
  • CVE Number: CVE-2019-10946

Description

The "refresh list of helpsites" endpoint of com_users lacks access checks, allowing calls from unauthenticated users.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.4

Solution

Upgrade to version 3.9.5

Contact

The JSST at the Joomla! Security Centre.

Reported By: Benjamin Trenkle (JSST)