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A directory traversal issue was discovered in OpenSlides before 4.2.5. Files can be uploaded to OpenSlides meetings and organized in folders. The interface allows users to download a ZIP archive that contains all files in a folder and its subfolders. If an attacker specifies the title of a file or folder as a relative or absolute path (e.g., ../../../etc/passwd), the ZIP archive generated for download converts that title into a path. Depending on the extraction tool used by the user, this might overwrite files locally outside of the chosen directory.
Reserved 2025-03-21 | Published 2025-03-21 | Updated 2025-03-21 | Assigner mitreCWE-24 Path Traversal: '../filedir'
www.x41-dsec.de/lab/advisories/x41-2025-001-OpenSlides
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