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GHSA-389p-fchr-q2mgcritical9.8

Path Traversal in ImpressCMS

Impact

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.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

impresscms/impresscms Packagist
Affected rangeRecorded fix
Earlier releases before 1.4.2Ecosystem versions1.4.2

Version evidence: OSV · GHSA-389p-fchr-q2mg

View original version evidence (0 explicit versions)

Original source description

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.

References