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 carrying arbitrary HTML, to an attacker-chosen address and from the form owner's configured sending identity, via the firstname field of t...

CVE-2026-75872

In maalfer MailerUp before 1.1.3, the unauthenticated public subscription form interpolates the first_name field unescaped into the double opt-in verification email, letting remote attackers send arbitrary HTML from the form owner's configured sending identity to an attacker-chosen address. The v...

CVE-2026-75872 HTML Injection in MailerUp double opt-in verification email

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 firstname field of t...

CVE-2026-75872 HTML Injection in MailerUp double opt-in verification email

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 firstname field of t...

EUVD-2026-60820

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 firstname field of t...

CVE-2026-13164

Missing Authentication for Critical Function CWE-306 in the RegisterView apps/accounts/views.py, exposed at POST /api/auth/register/, in MailerUp 1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, becaus...

CVE-2026-13164 Unauthenticated self-registration in MailerUp allows access to stored email data

Missing Authentication for Critical Function CWE-306 in the RegisterView apps/accounts/views.py, exposed at POST /api/auth/register/, in MailerUp 1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, becaus...

CVE-2026-13164

Technical details are not publicly available in the provided documents. Monitor for updates.

CVE-2026-13164

Missing Authentication for Critical Function CWE-306 in the RegisterView apps/accounts/views.py, exposed at POST /api/auth/register/, in MailerUp 1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, becaus...

CVE-2026-13164 Unauthenticated self-registration in MailerUp allows access to stored email data

Missing Authentication for Critical Function CWE-306 in the RegisterView apps/accounts/views.py, exposed at POST /api/auth/register/, in MailerUp 1.0.1 allows a remote, unauthenticated attacker to self-register a working account on instances where registration is intended to be restricted, becaus...

CVE-2026-13163

Open redirect vulnerability CWE-601 in the saferedirect function of the click-tracking endpoint /c// in Mailerup 1.0.0 on all platforms allows remote unauthenticated attackers to redirect victims to arbitrary external sites and conduct phishing attacks via a crafted u query parameter, because the...

EUVD-2026-38759

Open redirect vulnerability CWE-601 in the saferedirect function of the click-tracking endpoint /c// in Mailerup 1.0.0 on all platforms allows remote unauthenticated attackers to redirect victims to arbitrary external sites and conduct phishing attacks via a crafted u query parameter, because the...

CVE-2026-13163

Open redirect vulnerability CWE-601 in the saferedirect function of the click-tracking endpoint /c// in Mailerup 1.0.0 on all platforms allows remote unauthenticated attackers to redirect victims to arbitrary external sites and conduct phishing attacks via a crafted u query parameter, because the...

CVE-2026-13163 Lack of input validation in Mailerup input parameter leads to Open Redirect

Open redirect vulnerability CWE-601 in the saferedirect function of the click-tracking endpoint /c// in Mailerup 1.0.0 on all platforms allows remote unauthenticated attackers to redirect victims to arbitrary external sites and conduct phishing attacks via a crafted u query parameter, because the...

CVE-2026-13163

CVE-2026-13163 describes an open redirect in Mailerup (<1.0.0) via the _safe_redirect function in the click-tracking endpoint /c// on all platforms. The vulnerability allows remote, unauthenticated attackers to redirect victims to arbitrary external sites by crafting the u parameter. The schem...

PT-2026-51787

Name of the Vulnerable Software and Affected Versions Mailerup versions prior to 1.0.0 Description An open redirect issue exists in the safe redirect function of the click-tracking endpoint '/c//'. Remote unauthenticated attackers can redirect users to arbitrary external sites to perform phishing...