Highlights
Path Traversal: 2 prior fixes. Scrutinize any change in this area.
easy_thumbnails/files.py: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Path Traversal: The thumbnail optimization pipeline used absolute file paths directly in storage operations, allowing attackers to manipulate paths during post-processing saving and deletion operations. Developers should avoid passing absolute paths to storage backends and stick to relative, logical names.
Path Traversal: Inadequate path normalization in Thumbnailer failed to properly strip storage location prefixes and leading slashes. This permitted directory traversal when locating files, highlighting the need for robust path-prefix matching and normalization using secure abstractions.