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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.

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[20190304] - Core - Missing ACL check in sample data plugins

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: High
  • Versions: 3.8.0 through 3.9.3
  • Exploit type: XSS
  • Reported Date: 2019-February-28
  • Fixed Date: 2019-March-12
  • CVE Number: CVE-2019-9713

Description

The sample data plugins lack ACL checks, allowing unauthorized access.

Affected Installs

Joomla! CMS versions 3.8.0 through 3.9.3

Solution

Upgrade to version 3.9.4

Contact

The JSST at the Joomla! Security Centre.

Reported By: Sven Hurt, Benjamin Trenkle

[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

[20190103] - Core - Stored XSS issue in the Global Configuration textfilter settings

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.1
  • Exploit type: XSS
  • Reported Date: 2018-November-29
  • Fixed Date: 2019-January-15
  • CVE Number: CVE-2019-6263

Description

Inadequate checks at the Global Configuration Text Filter 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: Qualys WAF security team

[20190102] - Core - Stored XSS in com_contact

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.1
  • Exploit type: XSS
  • Reported Date: 2018-December-04
  • Fixed Date: 2019-January-15
  • CVE Number: CVE-2019-6261

Description

Inadequate escaping in com_contact leads to a stored XSS vulnerability

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: Antonin Steinhauser

[20190101] - Core - Stored XSS in mod_banners

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0 through 3.9.1
  • Exploit type: XSS
  • Reported Date: 2018-December-01
  • Fixed Date: 2019-January-15
  • CVE Number: CVE-2019-6264

Description

Inadequate escaping in mod_banners leads to a stored XSS vulnerability.

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: Antonin Steinhauser

[20181005] - Core - CSRF hardening in com_installer

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0 through 3.8.12
  • Exploit type: CSRF
  • Reported Date: 2018-September-26
  • Fixed Date: 2018-October-02
  • CVE Number: CVE-2018-17858

Description

Added additional CSRF hardening in com_installer actions in the backend.

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: Raviraj A. Powar

[20181004] - Core - ACL Violation in com_users for the admin verification

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 1.5.0 through 3.8.12
  • Exploit type: ACL Violation
  • Reported Date: 2017-December-27
  • Fixed Date: 2018-October-02
  • CVE Number: CVE-2018-17855

Description

In case that an attacker gets access to the mail account of an user who can approve admin verifications in the registration process he can activate himself.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.12

Solution

Upgrade to version 3.8.13

Contact

The JSST at the Joomla! Security Centre.

Reported By: Paul Freeman

[20181003] - Core - Access level Violation in com_tags

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.1.0 through 3.8.12
  • Exploit type: ACL Violation
  • Reported Date: 2018-June-20
  • Fixed Date: 2018-October-02
  • CVE Number: CVE-2018-17857

Description

Inadequate checks on the tags search fields can lead to an access level violation.

Affected Installs

Joomla! CMS versions 3.1.0 through 3.8.12

Solution

Upgrade to version 3.8.13

Contact

The JSST at the Joomla! Security Centre.

Reported By: Андрей Капитанов

[20181002] - Core - Inadequate default access level for com_joomlaupdate

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 2.5.4 through 3.8.12
  • Exploit type: Object Injection
  • Reported Date: 2018-June-21
  • Fixed Date: 2018-October-02
  • CVE Number: CVE-2018-17856

Description

Joomla’s com_joomlaupdate allows the execution of arbitrary code. The default ACL config enabled access of Administrator-level users to access com_joomlaupdate and trigger a code execution.

Affected Installs

Joomla! CMS versions 2.5.4 through 3.8.12

Solution

Upgrade to version 3.8.13

Contact

The JSST at the Joomla! Security Centre.

Reported By: Codesafescan

[20181001] - Core - Hardening com_contact contact form

  • 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)

[20180803] - Core - ACL Violation in custom fields

  • 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

[20180802] - Core - Stored XSS vulnerability in the frontend profile

  • 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

[20180801] - Core - Hardening the InputFilter for PHAR stubs

  • 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

[20180602] - Core - XSS vulnerability in language switcher module

  • 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

[20180601] - Core - Local File Inclusion with PHP 5.3

  • 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

[20180509] - Core - XSS vulnerability in the media manager

  • 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

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