CVE-2021-27731: Accellion FTA

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Accellion FTA 9_12_432 and earlier is affected by stored XSS via a crafted POST request to a user endpoint. The fixed version is FTA_9_12_444 and later.

Affected products

• Accellion FTA: up to and including 9_12_432

Published 2021-03-02. Last modified 2026-06-17.