GK Blank - Multipurpose starter Joomla! template

Security Announcements

  1. [20240805] - Core - XSS vectors in Outputfilter::strip* methods

    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Moderate
    • Probability: Low
    • Versions:3.0.0-3.10.16-elts, 4.0.0-4.4.6, 5.0.0-5.1.2
    • Exploit type: XSS
    • Reported Date: 2024-07-22
    • Fixed Date: 2024-08-20
    • CVE Number: CVE-2024-40743

    Description

    The stripImages and stripIframes methods didn't properly process inputs, leading to XSS vectors.

    Affected Installs

    Joomla! CMS versions 3.0.0-3.10.16-elts, 4.0.0-4.4.6, 5.0.0-5.1.2

    Solution

    Upgrade to version 3.10.17-elts, 4.4.7 or 5.1.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:  Jesper den Boer

  2. [20240804] - Core - Improper ACL for backend profile view

    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Moderate
    • Probability: Low
    • Versions: 4.0.0-4.4.6, 5.0.0-5.1.2
    • Exploit type: XSS
    • Reported Date: 2024-07-22
    • Fixed Date: 2024-08-20
    • CVE Number: CVE-2024-27187

    Description

    Improper Access Controls allows backend users to overwrite their username when disallowed.

    Affected Installs

    Joomla! CMS versions 4.0.0-4.4.6, 5.0.0-5.1.2

    Solution

    Upgrade to version 4.4.7 or 5.1.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:  Elysee Franchuk

  3. [20240803] - Core - XSS in HTML Mail Templates

    • Project: Joomla!
    • SubProject: CMS
    • Impact: Moderate
    • Severity: Moderate
    • Probability: Moderate
    • Versions: 4.0.0-4.4.6, 5.0.0-5.1.2
    • Exploit type: XSS
    • Reported Date: 2024-07-22
    • Fixed Date: 2024-08-20
    • CVE Number: CVE-2024-27186

    Description

    The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions.

    Affected Installs

    Joomla! CMS versions 4.0.0-4.4.6, 5.0.0-5.1.2

    Solution

    Upgrade to version 4.4.7 or 5.1.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:  Elysee Franchuk

  4. [20240802] - Core - Cache Poisoning in Pagination

    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Probability: Low
    • Versions: 3.0.0-3.10.16-elts, 4.0.0-4.4.6, 5.0.0-5.1.2
    • Exploit type: Cache Poisoning
    • Reported Date: 2024-05-23
    • Fixed Date: 2024-08-20
    • CVE Number: CVE-2024-27185

    Description

    The pagination class includes arbitrary parameters in links, leading to cache poisoning attack vectors.

    Affected Installs

    Joomla! CMS versions 3.0.0-3.10.16-elts, 4.0.0-4.4.6, 5.0.0-5.1.2

    Solution

    Upgrade to version 3.10.17-elts, 4.4.7 or 5.1.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:  Shane Edwards

  5. [20240801] - Core - Inadequate validation of internal URLs

    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Probability: Low
    • Versions: 3.4.6-3.10.16-elts, 4.0.0-4.4.6, 5.0.0-5.1.2
    • Exploit type: Open redirect
    • Reported Date: 2024-03-20
    • Fixed Date: 2024-08-20
    • CVE Number: CVE-2024-27184

    Description

    Inadequate validation of URLs could result into an invalid check whether an redirect URL is internal or not.

    Affected Installs

    Joomla! CMS versions 3.4.6-3.10.16-elts,4.0.0-4.4.6, 5.0.0-5.1.2

    Solution

    Upgrade to version 3.10.17-elts, 4.4.7 or 5.1.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:  Gareth Heyes (PortSwigger Research) & Teodor Ivanov