GHSA-cm83-2936-gxjm
CVE Information
Impact
Malicious sandboxed applications can use the FileChooser.SaveFiles method to gain arbitrary file access to non-existing files on the host (limited to files the user has access to).
Description
The FileChooser.SaveFiles method takes optional filenames which get appended to the selected directory by backends. The backends are supposed to check that the file does not exist yet. The filenames are not validated by the frontend and also not by common backends.
Patches
The issue has been patched in version 1.22.1.
Mitigations
No known mitigation other than updating.
Credits
Reported by WonYun Kang (kyun0)