Vulnerability Details CVE-2022-23602
Nimforum is a lightweight alternative to Discourse written in Nim. In versions prior to 2.2.0 any forum user can create a new thread/post with an include referencing a file local to the host operating system. Nimforum will render the file if able. This can also be done silently by using NimForum's post "preview" endpoint. Even if NimForum is running as a non-critical user, the forum.json secrets can be stolen. Version 2.2.0 of NimForum includes patches for this vulnerability. Users are advised to upgrade as soon as is possible. There are no known workarounds for this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 57.6%
CVSS Severity
CVSS v3 Score 7.7
CVSS v2 Score 5.5
References
- https://github.com/nim-lang/Nim/commit/cb894c7094fb49014f85815a9dafc38b5dda743e
- https://github.com/nim-lang/nimforum/security/advisories/GHSA-q3vh-x957-wr75
- https://github.com/nim-lang/Nim/commit/cb894c7094fb49014f85815a9dafc38b5dda743e
- https://github.com/nim-lang/nimforum/security/advisories/GHSA-q3vh-x957-wr75