medium6.9
CVE-2026-75872
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 …
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Maalfer MailerUp | before 1.1.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.