CVE-2025-53941

Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Versions prior to 0.6.5 allow HTML form elements to be submitted, making the software vulnerable to HTML injection. Version 0.6.5 fixes the issue.

More information : https://github.com/fedify-dev/hollo/commit/f9d25e10ba5406c27f9e87dfb01f75b6a52f2410