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    • 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.

    Reported By:Daniel le Gall, Fix coordinated by Oliver Hader from TYPO3
    • Project: Joomla!
    • SubProject: CMS
    • Impact:Moderate
    • Severity: Low
    • Versions: 1.7.0 through 3.9.5
    • Exploit type: XSS
    • Reported Date: 2019-April-29
    • Fixed Date: 2019-May-07
    • CVE Number: CVE-2019-11809

    Description

    The debug views of com_users do not properly escape user supplied data, which leads to a potential XSS attack vector.

    Affected Installs

    Joomla! CMS versions 1.7.0 through 3.9.5

    Solution

    Upgrade to version 3.9.6

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:Jose Antonio Rodriguez Garcia and Phil Keeble (MWR InfoSecurity)
    • Project: Joomla!
    • SubProject: CMS
    • Impact:Low
    • Severity: Moderate
    • Versions: 3.0.0 through 3.9.4
    • Exploit type:XSS
    • Reported Date: 2019-March-25
    • Fixed Date: 2019-April-09
    • CVE Number: CVE-2019-11358

    Description

    The $.extend method of JQuery is vulnerable to Object.prototype pollution attacks.

    Affected Installs

    Joomla! CMS versions 3.0.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:Michał Gołębiowski-Owczarek, David Jardin (JSST)
    • Project: Joomla!
    • SubProject: CMS
    • Impact:Low
    • Severity: High
    • Versions: 3.2.0 through 3.9.4
    • Exploit type:ACL Violation
    • Reported Date: 2019-March-13
    • Fixed Date: 2019-April-08
    • CVE Number: CVE-2019-10946

    Description

    The "refresh list of helpsites" endpoint of com_users lacks access checks, allowing calls from unauthenticated users.

    Affected Installs

    Joomla! CMS versions 3.2.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:Benjamin Trenkle (JSST)
    • Project: Joomla!
    • SubProject: CMS
    • Impact:Moderate
    • Severity: Low
    • Versions: 1.5.0 through 3.9.4
    • Exploit type: Directory Traversal
    • Reported Date: 2019-March-13
    • Fixed Date: 2019-April-08
    • CVE Number: CVE-2019-10945

    Description

    The Media Manager component does not properly sanitise the folder parameter, allowing attackers to act outside the media manager root directory.

    Affected Installs

    Joomla! CMS versions 1.5.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By:Haboob Research Team