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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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  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0 - 3.9.24
  • Exploit type: Improper Input Validation
  • Reported Date: 2020-02-17
  • Fixed Date: 2021-03-02
  • CVE Number: CVE-2021-23132

Description

com_media allowed paths that are not intended for image uploads.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.24

Solution

Upgrade to version 3.9.25

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 3.0.0 - 3.9.24
  • Exploit type: ACL violation
  • Reported Date: 2020-10-25
  • Fixed Date: 2021-03-02
  • CVE Number: CVE-2021-26027

Description

Incorrect ACL checks could allow unauthorized change of the category for an article.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.24

Solution

Upgrade to version 3.9.25

Contact

The JSST at the Joomla! Security Centre.

Reported By: Brian Teeman, George Wilson (JSST), David Jardin (JSST)

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 1.6.0 - 3.9.24
  • Exploit type: ACL Violation
  • Reported Date: 2021-01-31
  • Fixed Date: 2021-03-02
  • CVE Number: CVE-2021-26029

Description

Inadequate filtering of form contents could allow to overwrite the author field. The affected core components are com_fields, com_categories, com_banners, com_contact, com_newsfeeds and com_tags. 

Affected Installs

Joomla! CMS versions 1.6.0 - 3.9.24

Solution

Upgrade to version 3.9.25

Contact

The JSST at the Joomla! Security Centre.

Reported By: DangKhai from Viettel Cyber Security

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions:3.1.0 - 3.9.23
  • Exploit type: XSS
  • Reported Date: 2020-09-01
  • Fixed Date: 2021-01-12
  • CVE Number: CVE-2021-23125

Description

Lack of escaping of image-related parameters in multiple com_tags views cause lead to XSS attack vectors.

Affected Installs

Joomla! CMS versions 3.1.0 - 3.9.23

Solution

Upgrade to version 3.9.24

Contact

The JSST at the Joomla! Security Centre.

Reported By: Šarūnas Paulauskas

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions:3.9.0 - 3.9.23
  • Exploit type: XSS
  • Reported Date: 2020-09-01
  • Fixed Date: 2021-01-12
  • CVE Number: CVE-2021-23124

Description

Lack of escaping in mod_breadcrumbs aria-label attribute allows XSS attacks.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.23

Solution

Upgrade to version 3.9.24

Contact

The JSST at the Joomla! Security Centre.

Reported By: Šarūnas Paulauskas

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions:3.0.0 - 3.9.23
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-07-07
  • Fixed Date: 2021-01-12
  • CVE Number: CVE-2021-23123

Description

Lack of ACL checks in the orderPosition endpoint of com_modules leak names of unpublished and/or inaccessible modules.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.23

Solution

Upgrade to version 3.9.24

Contact

The JSST at the Joomla! Security Centre.

Reported By: Phil Taylor

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions:1.7.0 - 3.9.22
  • Exploit type: ACL Violation
  • Reported Date: 2018-11-04
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35616

Description

Lack of input validation while handling ACL rulesets can cause write ACL violations.

Affected Installs

Joomla! CMS versions 1.7.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Elisa Foltyn, Benjamin Trenkle

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.9.0-3.9.22
  • Exploit type: CSRF
  • Reported Date: 2020-10-08
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35615

Description

A missing token check in the emailexport feature of com_privacy causes a CSRF vulnerability.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Lee Thao from Viettel Cyber Security

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.9.0-3.9.22
  • Exploit type: User Enumeration
  • Reported Date: 2020-08-15
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35614

Description

Improper handling of the username leads to a user enumeration attack vector in the backend login page.

Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Phil Taylor

  • Project: Joomla!
  • SubProject: CMS
  • Impact: High
  • Severity: Low
  • Versions: 3.0.0-3.9.22
  • Exploit type: SQL Injection
  • Reported Date: 2020-10-13
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35613

Description

Improper filter blacklist configuration leads to a SQL injection vulnerability in the backend user list.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  ka1n4t

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0-3.9.22
  • Exploit type: Path traversal
  • Reported Date: 2020-10-06
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35612

Description

The folder parameter of mod_random_image lacked input validation, leading to a path traversal vulnerability.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Lee Thao from Viettel Cyber Security, Phil Taylor

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0-3.9.22
  • Exploit type: Information Disclosure
  • Reported Date: 2020-09-23
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35611

Description

The globlal configuration page does not remove secrets from the HTML output, disclosing the current values.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Corch

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Moderate
  • Severity: Low
  • Versions: 2.5.0-3.9.22
  • Exploit type: Information Disclosure
  • Reported Date: 2020-06-21
  • Fixed Date: 2020-11-24
  • CVE Number: CVE-2020-35610

Description

The autosuggestion feature of com_finder did not respect the access level of the corresponding terms.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.22

Solution

Upgrade to version 3.9.23

Contact

The JSST at the Joomla! Security Centre.

Reported By:  Phil Taylor

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.0.0-3.9.20
  • Exploit type: Open Redirect
  • Reported Date: 2020-July-05
  • Fixed Date: 2020-August-25
  • CVE Number: CVE-2020-24598

Description

Lack of input validation in com_content leads to an open redirect.

Affected Installs

Joomla! CMS versions 3.0.0 - 3.9.20

Solution

Upgrade to version 3.9.21

Contact

The JSST at the Joomla! Security Centre.

Reported By: Ahmad Kamaran Jamil

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 2.5.0-3.9.20
  • Exploit type: Directory Traversal
  • Reported Date: 2020-February-02
  • Fixed Date: 2020-August-25
  • CVE Number: CVE-2020-24597

Description

Lack of input validation allows com_media root paths outside of the webroot.

Affected Installs

Joomla! CMS versions 2.5.0 - 3.9.20

Solution

Upgrade to version 3.9.21

Contact

The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

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