efceed6f68b763029ccfac12b642693a5b0f1f75
Allowed domains consist of `REMARK_URL` second-level domain (or whole IP in case it's IP like `127.0.0.1`) and `ALLOWED_HOSTS`. That is needed to prevent Remark42 from asking arbitrary servers and storing the page title as the comment.PostTitle. Previous behaviour allowed the caller of the API to create a comment with an arbitrary URL and learn the title of the page, which might be accessible to the server Remark42 is installed on but not to the user outside that network (CWE-918).
Remark42

Remark42 is a self-hosted, lightweight and simple (yet functional) comment engine, which doesn't spy on users. It can be embedded into blogs, articles, or any other place where readers add comments.
- Social login via Google, Twitter, Facebook, Microsoft, GitHub, Yandex, Patreon and Telegram
- Login via email
- Optional anonymous access
- Multi-level nested comments with both tree and plain presentations
- Import from Disqus and WordPress
- Markdown support with friendly formatter toolbar
- Moderator can remove comments and block users
- Voting, pinning and verification system
- Sortable comments
- Images upload with drag-and-drop
- Extractor for recent comments, cross-post
- RSS for all comments and each post
- Telegram, Slack, Webhook and email notifications for Admins (get notified for each new comment)
- Email and Telegram notifications for users (get notified when someone responds to your comment)
- Export data to JSON with automatic backups
- No external databases, everything embedded in a single data file
- Fully dockerized and can be deployed in a single command
- Self-contained executable can be deployed directly to Linux, Windows and macOS
- Clean, lightweight and customizable UI with white and dark themes
- Multi-site mode from a single instance
- Integration with automatic SSL (direct and via nginx-le)
- Privacy focused
Demo site available with all authentication methods, including email auth and anonymous access.
All remark42 documentation is available by the link.
Contribution
In order to start and work on the project locally in development mode check our contribution documentation for backend and frontend.
If you are interested in adding a new localization please check these docs.
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