CVE-2026-42857 Open edX Platform: Stored CSS Injection in Email Notifications via Incomplete HTML Sanitization

Open edX Platform enables the authoring and delivery of online learning at any scale. The HTML sanitizer cleanthreadhtmlbody used for discussion notification emails fails to remove tags from user-generated discussion post content. This content is rendered with Django's |safe template filter in...

CVE-2026-35046

CVE-2026-35046 affects Tandoor Recipes prior to version 2.6.4. Authenticated users can inject arbitrary tags into recipe step instructions. The bleach.clean() sanitizer explicitly whitelists , allowing the backend to persist and serve unsanitized CSS payloads via the API. Clients rendering instr...

CVE-2025-41768

Summary: CVE-2025-41768 affects TwinCAT 3 HMI Server. An authenticated administrator can inject arbitrary content into the device’s custom CSS field, which is persisted and later echoed on login and error pages, constituting a stored XSS. The connected Red Hat, NVD, CVE list, and security feeds d...