A few weeks ago, after tinkering a bit with the url in my location bar while navigating around ziggo.nl I noticed an Open Redirect Vulnerability. I checked for the proper procedure to report this to Ziggo, not actually expecting any reward, so the report was a really low effort one. But it was sufficent for Ziggo to assess the impact and address the issue. I found Ziggo’s Meldpunt beveiligingslekken which contained an email address and sent them my report.…

Recently, while syncing a CouchDB database to a new cluster, we noticed a massive amount of deleted documents being synced. This was completely unnecessary for our migration and slowed things down drastically. I started looking into the proper way to clean up, purge, compact a CouchDB and was surprised that it was actually quite hard (and at first illogical) to really removed old, deleted documents Revisions and deleted documents Whenever a document gets updated (even if unchanged), a new revision gets created.…

Whenever I try to share something on Android, most often a freshly taken photo but sometimes also just generic files, I get really annoyed by the complete randomness and uselessness of the sharing options. It usually takes 3 or 4 swipes to get to the right application (e.g. Dropbox or WhatsApp) before I can actually send it, skipping options such as “Print”, “Bluetooth”, “Messages”, “Chat” and other stuff I never use.…