Joomla! Security News

1. [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

   

   

2. [20180508] - Core - Possible XSS attack in the redirect method

   • Project: Joomla!
   • SubProject: CMS
   • Impact: Low
   • Severity: Low
   • Versions: 3.1.2 through 3.8.7
   • Exploit type: XSS
   • Reported Date: 2018-March-30
   • Fixed Date: 2018-May-22
   • CVE Number: CVE-2018-11328

   Description

   Under specific circumstances (a redirect issued with a URI containing a username and password when the Location: header cannot be used), a lack of escaping the user-info component of the URI could result in a XSS vulnerability.

   Affected Installs

   Joomla! CMS versions 3.1.2 through 3.8.7

   Solution

   Upgrade to version 3.8.8

   Contact

   The JSST at the Joomla! Security Centre.

   Reported By:David Jardin, JSST

   

   

3. [20180507] - Core - Session deletion race condition

   • Project: Joomla!
   • SubProject: CMS
   • Impact: Medium
   • Severity: Low
   • Versions: 3.0.0 through 3.8.7
   • Exploit type: Session race condition
   • Reported Date: 2017-July-08
   • Fixed Date: 2018-May-22
   • CVE Number: CVE-2018-11324

   Description

   A long running background process, such as remote checks for core or extension updates, could create a race condition where a session which was expected to be destroyed would be recreated.

   Affected Installs

   Joomla! CMS versions 3.0.0 through 3.8.7

   Solution

   Upgrade to version 3.8.8

   Additional Resources

   • Links Go Here

   Contact

   The JSST at the Joomla! Security Centre.

   Reported By:David Jardin, JSST

   

   

4. [20180506] - Core - Filter field in com_fields allows remote code execution

   • Project: Joomla!
   • SubProject: CMS
   • Impact: Moderate
   • Severity: Low
   • Versions: 3.7.0 through 3.8.7
   • Exploit type: Remote Code Execution
   • Reported Date: 2018-May-14
   • Fixed Date: 2018-May-22
   • CVE Number: CVE-2018-11321

   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 3.7.0 through 3.8.7

   Solution

   Upgrade to version 3.8.8

   Contact

   The JSST at the Joomla! Security Centre.

   Reported By:Benjamin Trenkle, JSST

   

   

5. [20180505] - Core - XSS Vulnerabilities & additional hardening

   • Project: Joomla!
   • SubProject: CMS
   • Impact: Moderate
   • Severity: Moderate
   • Versions: 3.0.0 through 3.8.7
   • Exploit type:XSS
   • Reported Date:2018-February-02 & 2018-March-27
   • Fixed Date: 2018-May-22
   • CVE Number: CVE-2018-11326

   Description

   Inadequate input filtering leads to multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.

   Affected Installs

   Joomla! CMS versions 3.0.0 through 3.8.7

   Solution

   Upgrade to version 3.8.8

   Additional Resources

   • You can find more details and other default changes in 3.8.8 at the Documentation.

   Contact

   The JSST at the Joomla! Security Centre.

   Reported By:Kai Zhao of 3H Security Team & Zhouyuan Yang (FortiGuard Labs)