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 PHP_SESSION_UPLOAD_PROGRESS when the PHP installation supports upload_progress.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| impresscms/impresscms(Packagist) | 0 | 1.4.2 | N/A |
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