mangadex-downloader vulnerable to unauthorized file reading

Impact

When using file:<location> command and <location> is web URL location (http, https). mangadex-downloader will try to open and read a file in local disk if the content from online file is exist-as-a-file in victim computer

So far, the app only read the files and not execute it. But still, when someone reading your files without you knowing, it’s very scary.

Proof of Concept (PoC)

https://www.mansuf.link/unauthorized-file-read-in-mangadex-downloader-cve-2022-36082/

Workarounds

Unfortunately, there is no workarounds to make it safe from this issue. But i suggest you double check the url before proceed to download or update to latest version ( >= 1.7.2)

Patches

Fixed in version 1.7.2.
Commit patch: https://github.com/mansuf/mangadex-downloader/commit/439cc2825198ebc12b3310c95c39a8c7710c9b42