Developer Network™ 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: 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Project: Joomla!
- SubProject: CMS
- Impact: Low
- Severity: Low
- Versions: 3.8.0 - 3.9.13
- Exploit type: Path Disclosure
- Reported Date: 2019-November-22
- Fixed Date: 2019-December-17
- CVE Number: CVE-2019-19845
Description
Missing access check in framework files could lead to a path disclosure.
Affected Installs
Joomla! CMS versions 3.8.0 - 3.9.13
Solution
Upgrade to version 3.9.14
Contact
The JSST at the Joomla! Security Centre.
- Project: Joomla!
- SubProject: CMS
- Impact: Low
- Severity: Low
- Versions: 3.6.0 - 3.9.12
- Exploit type: Path Disclosure
- Reported Date: 2019-November-01
- Fixed Date: 2019-November-05
- CVE Number: CVE-2019-18674
Description
Missing access check in the phputf8 mapping files could lead to an path disclosure.
Affected Installs
Joomla! CMS versions 3.6.0 - 3.9.12
Solution
Upgrade to version 3.9.13
Contact
The JSST at the Joomla! Security Centre.
- Project: Joomla!
- SubProject: CMS
- Impact: High
- Severity: Low
- Versions: 3.2.0-3.9.12
- Exploit type: CSRF
- Reported Date: 2019-October-10
- Fixed Date: 2019-November-05
- CVE Number: CVE-2019-18650
Description
A missing token check in com_template causes a CSRF vulnerability.
Affected Installs
Joomla! CMS versions 3.2.0 - 3.9.12
Solution
Upgrade to version 3.9.13
Contact
The JSST at the Joomla! Security Centre.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.