Description (CNA)
PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| PyMuPDF / PyMuPDF | affected 0 through 1.8.2; unaffected b2c8f3a859fed35c379a44df566f770dc3e18605 |
CWE
CWE-22
References
- https://github.com/pymupdf/PyMuPDF/commit/b2c8f3a859fed35c379a44df566f770dc3e18605
- https://www.vulncheck.com/advisories/pymupdf-path-traversal-via-extract-objects-font-branch
ADP enrichment
No English description supplied.
No references supplied.