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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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[20200801] - Core - XSS in mod_latestactions

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.9.0-3.9.20
  • Exploit type: XSS
  • Reported Date: 2020-August-21
  • Fixed Date: 2020-August-25
  • CVE Number: CVE-2020-24599

Description

Lack of escaping in mod_latestactions allows XSS attacks.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.20

Solution

Upgrade to version 3.9.21

Contact

The JSST at the Joomla! Security Centre.

Reported By: Peter Martin

[20200706] - Core - System Information screen could expose redis or proxy credentials

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0-3.9.19
  • Exploit type: Information Disclosure
  • Reported Date: 2020-Jun-17
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-15698

Description

Inadequate filtering in the system information screen could expose redis or proxy credentials

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Phil Taylor

[20200705] - Core - Escape mod_random_image link

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0-3.9.19
  • Exploit type: XSS
  • Reported Date: 2020-Jun-08
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-15696

Description

Lack of input filtering and escaping allows XSS attacks in mod_random_image

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Phil Taylor

[20200704] - Core - Variable tampering via user table class

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0-3.9.19
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-Jun-02
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-15697

Description

Internal read-only fields in the User table class could be modified by users.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Phil Taylor

[20200703] - Core - CSRF in com_privacy remove-request feature

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.9.0-3.9.19
  • Exploit type: CSRF
  • Reported Date: 2020-May-07
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-15695

Description

A missing token check in the remove request section of com_privacy causes a CSRF vulnerability.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Bui Duc Anh Khoa from Viettel Cyber Security

[20200702] - Core - Missing checks can lead to a broken usergroups table record

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0-3.9.19
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-April-04
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-15699

Description

Missing validation checks at the usergroups table object can result into an broken site configuration.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200701] - Core - CSRF in com_installer ajax_install endpoint

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.7.0-3.9.19
  • Exploit type: CSRF
  • Reported Date: 2020-May-07
  • Fixed Date: 2020-July-14
  • CVE Number: CVE-2020-XXXXX

Description

A missing token check in the ajax_install endpoint com_installer causes a CSRF vulnerability.

Affected Installs

Joomla! CMS versions 3.7.0 - 3.9.19

Solution

Upgrade to version 3.9.20

Contact

The JSST at the Joomla! Security Centre.

Reported By: Bui Duc Anh Khoa from Viettel Cyber Security

[20200605] - Core - CSRF in com_postinstall

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.7.0-3.9.18
  • Exploit type: CSRF
  • Reported Date: 2020-May-08
  • Fixed Date: 2020-June-02
  • CVE Number: CVE-2020-13760

Description

Missing token checks in com_postinstall cause CSRF vulnerabilities.

Affected Installs

Joomla! CMS versions 3.7.0 - 3.9.18

Solution

Upgrade to version 3.9.19

Contact

The JSST at the Joomla! Security Centre.

Reported By: Bui Duc Anh Khoa from Viettel Cyber Security

[20200604] - Core - XSS in jQuery.htmlPrefilter

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Moderate
  • Versions: 3.0.0-3.9.18
  • Exploit type: XSS
  • Reported Date: 2020-April-10
  • Fixed Date: 2020-June-02
  • CVE Number: CVE-2020-11022 and CVE-2020-11023

Description

The jQuery project released version 3.5.0, and as part of that, disclosed two security vulnerabilities that affect all prior versions. As mentioned in the jQuery blog, both are "[...] security issues in jQuery’s DOM manipulation methods, as in .html(), .append(), and the others."

The Drupal project has backported the relevant fixes back to jQuery 1.x and Joomla has adopted that patch.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.18

Solution

Upgrade to version 3.9.19

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin, JSST

[20200603] - Core - XSS in com_modules tag options

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0-3.9.18
  • Exploit type: XSS
  • Reported Date: 2020-May-06
  • Fixed Date: 2020-June-02
  • CVE Number: CVE-2020-13762

Description

Incorrect input validation of the module tag option in com_modules allow XSS attacks.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.18

Solution

Upgrade to version 3.9.19

Contact

The JSST at the Joomla! Security Centre.

Reported By: Bui Duc Anh Khoa from Viettel Cyber Security

[20200602] - Core - Inconsistent default textfilter settings

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0-3.9.18
  • Exploit type: Insecure Permissions
  • Reported Date: 2020-April-23
  • Fixed Date: 2020-June-02
  • CVE Number: CVE-2020-13763

Description

The default settings of the global "textfilter" configuration doesn't block HTML inputs for 'Guest' users. With 3.9.19, the textfilter for new installations has been set to 'No HTML' for the groups 'Public', 'Guest' and 'Registered'.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.18

Solution

Upgrade to version 3.9.19

Contact

The JSST at the Joomla! Security Centre.

Reported By: Brian Teeman

[20200601] - Core - XSS in modules heading tag option

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0-3.9.18
  • Exploit type: XSS
  • Reported Date: 2020-May-06
  • Fixed Date: 2020-June-02
  • CVE Number: CVE-2020-13761

Description

Lack of input validation in the heading tag option of the "Articles – Newsflash" and "Articles - Categories" modules allow XSS attacks.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.18

Solution

Upgrade to version 3.9.19

Contact

The JSST at the Joomla! Security Centre.

Reported By: Bui Duc Anh Khoa from Viettel Cyber Security

[20200403] - Core - Incorrect access control in com_users access level deletion function

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0 - 3.9.16
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-March-13
  • Fixed Date: 2020-April-21
  • CVE Number: CVE-2020-11889

Description

Incorrect ACL checks in the access level section of com_users allow the unauthorized deletion of usergroups.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.16

Solution

Upgrade to version 3.9.17

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200402] - Core - Missing checks for the root usergroup in usergroup table

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0 - 3.9.16
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-February-27
  • Fixed Date: 2020-April-21
  • CVE Number: CVE-2020-11890

Description

Inproper input validations in the usergroup table class could lead to a broken ACL configuration.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.16

Solution

Upgrade to version 3.9.17

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200401] - Core - Incorrect access control in com_users access level editing function

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.8.8 - 3.9.16
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-March-13
  • Fixed Date: 2020-April-21
  • CVE Number: CVE-2020-11891

Description

Incorrect ACL checks in the access level section of com_users allow the unauthorized editing of usergroups.

Affected Installs

Joomla! CMS versions 3.8.8 - 3.9.16

Solution

Upgrade to version 3.9.17

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200306] - Core - SQL injection in Featured Articles menu parameters

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 1.7.0-3.9.15
  • Exploit type: SQL Injection
  • Reported Date: 2020-March-9
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10243

Description

The lack of type casting of a variable in SQL statement leads to a SQL injection vulnerability in the "Featured Articles" frontend menutype.

Affected Installs

Joomla! CMS versions 1.7.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Sam Thomas, Pentest.co.uk

[20200304] - Core - Identifier collisions in com_users

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 3.0.0-3.9.15
  • Exploit type: Other
  • Reported Date: 2020-February-07
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10240

Description

Missing length checks in the user table can lead to the creation of users with duplicate usernames and/or email addresses.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Lee Thao from Viettel Cyber Security

[20200305] - Core - Incorrect Access Control in com_fields SQL field

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 3.7.0-3.9.15
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-February-28
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10239

Description

Incorrect Access Control in the SQL fieldtype of com_fields allows access for non-superadmin users.

Affected Installs

Joomla! CMS versions 3.7.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200303] - Core - Incorrect Access Control in com_templates

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 2.5.0-3.9.15
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-January-31
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10238

Description

Various actions in com_templates lack the required ACL checks, leading to various potential attack vectors.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200302] - Core - XSS in Protostar and Beez3

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0-3.9.15
  • Exploit type: XSS
  • Reported Date: 2020-February-24
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10242

Description

Inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript allow XSS attacks.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Pham Van Khanh

[20200301] - Core - CSRF in com_templates image actions

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.2.0-3.9.15
  • Exploit type: CSRF
  • Reported Date: 2020-February-06
  • Fixed Date: 2020-March-10
  • CVE Number: CVE-2020-10241

Description

Missing token checks in the image actions of com_templates causes CSRF vulnerabilities.

Affected Installs

Joomla! CMS versions 3.2.0 - 3.9.15

Solution

Upgrade to version 3.9.16

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

[20200103] - Core - XSS in com_actionlogs

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 3.9.0-3.9.14
  • Exploit type: XSS
  • Reported Date: 2019-December-25
  • Fixed Date: 2020-January-28
  • CVE Number: CVE-2020-8421

Description

Inadequate escaping of usernames allow XSS attacks in com_actionlogs.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.14

Solution

Upgrade to version 3.9.15

Contact

The JSST at the Joomla! Security Centre.

Reported By: Mayank Kumbhar from Techjoomla

[20200102] - Core - CSRF com_templates LESS compiler

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 3.0.0-3.9.14
  • Exploit type: CSRF
  • Reported Date: 2019-December-18
  • Fixed Date: 2020-January-28
  • CVE Number: CVE-2020-8420

Description

A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.14

Solution

Upgrade to version 3.9.15

Contact

The JSST at the Joomla! Security Centre.

Reported By: Lee Thao from Viettel Cyber Security

[20200101] - Core - CSRF in batch actions

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0-3.9.14
  • Exploit type: CSRF
  • Reported Date: 2019-December-23
  • Fixed Date: 2020-January-28
  • CVE Number: CVE-2020-8419

Description

Missing token checks in the batch actions of various components causes CSRF vulnerabilities.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.14

Solution

Upgrade to version 3.9.15

Contact

The JSST at the Joomla! Security Centre.

Reported By: Lee Thao from Viettel Cyber Security

[20191202] - Core - Various SQL injections through configuration parameters

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 2.5.0 - 3.9.13
  • Exploit type: SQL injection
  • Reported Date: 2019-December-01
  • Fixed Date: 2019-December-17
  • CVE Number: CVE-2019-19846

Description

The lack of validation of configuration parameters used in SQL queries caused various SQL injection vectors.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.13

Solution

Upgrade to version 3.9.14

Contact

The JSST at the Joomla! Security Centre.

Reported By: ka1n4t

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