An issue was discovered in Joomla! 3.0.0 through 3.10.6 & 4.0.0 through 4.1.0. Extracting an specifilcy crafted tar package could write files outside of the intended path.
{
    "cpes": [
        "cpe:2.3:a:joomla:joomla!:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
}