CVE-2021-24288: Acymailing

Medium severity, CVSS 6.1. EPSS: 1.9% chance of exploitation in the next 30 days.

When subscribing using AcyMailing, the 'redirect' parameter isn't properly sanitized. Turning the request from POST to GET, an attacker can craft a link containing a potentially malicious landing page and send it to the victim.

Affected products

• Acymailing Acymailing: before 7.5.0 (fixed in 7.5.0)

Published 2021-05-17. Last modified 2026-06-17.