Description
Koha Library before 23.05.10 fails to sanitize user-controllable filenames prior to unzipping, leading to remote code execution. The line "qx/unzip $filename -d $dirname/;" in upload-cover-image.pl is vulnerable to command injection via shell metacharacters because input data can be controlled by an attacker and is directly included in a system command, i.e., an attack can occur via malicious filenames after uploading a .zip file and clicking Process Images.
References
gitlab.com/...x/misc/release_notes/release_notes_23_05_10.md
gitlab.com/...x/misc/release_notes/release_notes_23_05_11.md
github.com/hacklantic/Research/tree/main/CVE-2024-36057
koha-community.org/koha-22-05-22-released/