VULNERABILITY INTELLIGENCE
CVE-2026-75872
EPSS probability0.74%
CISA KEVNot currently listed
Published2026-08-18
Last modified2026-10-22
Description
HTML Injection in the public subscription form in maalfer MailerUp before 1.1.3 allows unauthenticated remote attackers to have the application send a message carrying arbitrary HTML, to an attacker-chosen address and from the form owner's configured sending identity, via the first_name field of the subscription request, which is interpolated unescaped into the double opt-in verification email.
Weakness classification
- 4daa8cea-433a-44bd-9456-53b127fc289a: CWE-80