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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[20200803] - Core - Directory traversal in com_media
- 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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.