Please provide the following information.
- Provide a short summary of your proposed post for the Wikimedia Technical Blog. Blog readers will see this as the preview to your post:
During Wikimedia's Mailman3 migration, we discovered and fixed a security issue that would have disclosed the contents of private list archives during the import process. This post explains the issue, how we discovered it and how it was fixed.
- Which topic type does your blog post fall under? See: https://www.mediawiki.org/wiki/Wikimedia_technical_blog_editorial_guidelines#Outlines_for_topics:
Technical explanation: problem / solution
- Which audience or audiences do you think your post is appropriate for?:
People interested in Mailman, our migration or general security issues
- Will you need assistance with writing your blog post, or do you already have a draft? If you have a draft, please provide a link here:
https://www.mediawiki.org/wiki/User:Legoktm/Blog/CVE-2021-33038
- Does your post need to be published by a certain date?
no
- Do you have an image in mind for the featured image? You can learn more here: https://www.mediawiki.org/wiki/Wikimedia_technical_blog_editorial_guidelines#Images_used_in_your_post
I didn't, maybe something from https://commons.wikimedia.org/wiki/Category:Airmail or a related category?
- Do you have any other questions or comments?
cc @Majavah @Ladsgroup and @Urbanecm since I mentioned them in the post