ImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or imageName, leading to unsafe interaction with the CKEditor processImage.php script. The payload may be placed in PHPSESSIONUPLOADPROGRESS when the PHP installation supports uploadprogress.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-22"
],
"severity": "CRITICAL",
"nvd_published_at": "2022-02-14T12:15:00Z",
"github_reviewed_at": "2022-02-25T17:59:00Z"
}