Fix CVE-2025-0818 #3723
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Fix CVE-2025-0818 #3723
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- Fixed arbitrary file delete by prepending the tempath to the global temp file array paths before deleting them - This also required a new global array (elFinderAbortFiles) because the temp path could be different depeing on the configuration of elFInder. - Removed the ability of getTempPath() to return the writableTmb path because this would unnecessarly complicate things when checking the path before deletion
- Prevented arbitrary file read by prepending the common temp directory to the extracted onetime file path of the 'file' commands 'ontime' function. - Prevented directory traversal and the general use of paths by using basename() for the appended file name. - This patch currently prevents arbitrary file reads and deletes. However, it still allows this for files in the .tmp directory. This should also at least be mitigated.
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This patch addresses the most critical aspects of CVE-2025-0818 (arbitrary file deletes and reads).
Further security assessments should be conducted to validate the robustness of this patch by the project maintainers.