Sansec: card skimmer in Convertr's shared analytics script hit Brazilian checkouts
Sansec reported on 26 October 2026 that a Brazilian Magecart group had appended a card skimmer to the analytics tracker that Convertr, an e-commerce platform running the stores and checkouts of dozens of Brazilian fashion brands, loads on every checkout. The skimmer captured card number, expiry date, CVV, cardholder name and CPF taxpayer number and sent them to 1x0.is. Sansec suspects, but has not confirmed, that the attackers got in through CVE-2026-8467, an unauthenticated code execution flaw reachable through the /storybook endpoint of Convertr's self-hosted Plausible Community Edition 3.0 server, which had not been updated since its 2025 install. Convertr removed the skimmer and patched Plausible on 27 October, Sansec said.
- Website security audit
- Web application testing
- Incident response