Fix possible path traversal through thumbnail endpoint #3660
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Pull request overview
This PR addresses a security vulnerability by fixing a potential path traversal attack through the thumbnail endpoint. The changes implement path canonicalization to validate and sanitize file paths before processing thumbnail requests.
Key changes:
- Added path canonicalization using
PathCanonicalize::canonicalize()to prevent directory traversal attacks - Added exception handling for
FileNotFoundExceptionto gracefully handle missing files - Fixed typo: renamed
$posible_fitto$possibleFit
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tobias-93
approved these changes
Dec 30, 2025
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