Security Announcements

  1. [20190603] - Core - ACL hardening of com_joomlaupdate
    • 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.

     
  2. [20190602] - Core - XSS in subform field
    • 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.

    Reported By: Volkmar Schlothauer, ghsvs.de
  3. [20190601] - Core - CSV injection in com_actionlogs
    • 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.

    Reported By: Jose Antonio Rodriguez Garcia and Phil Keeble (MWR InfoSecurity)
  4. [20190502] - Core - By-passing protection of Phar Stream Wrapper Interceptor
    • 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
  5. [20190501] - Core - XSS in com_users ACL debug views
    • 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)

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