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2 vulnerabilities found for MailerUp by maalfer
CVE-2026-75872 (GCVE-0-2026-75872)
Vulnerability from nvd – Published: 2026-08-18 14:06 – Updated: 2026-08-18 16:04 X_Open Source
VLAI
EPSS
VEX
Title
HTML Injection in MailerUp double opt-in verification email
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 16:04 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/maalfer/mailerup/commit/da4aed… | patch |
| https://github.com/maalfer/mailerup/releases/tag/v1.1.3 | release-notes |
| https://secur0.com/en/cna/cve-list/cve-2026-75872… | technical-description |
Impacted products
Date Public
2026-08-18 12:43
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CVE-2026-75872 (GCVE-0-2026-75872)
Vulnerability from cvelistv5 – Published: 2026-08-18 14:06 – Updated: 2026-08-18 16:04 X_Open Source
VLAI
EPSS
VEX
Title
HTML Injection in MailerUp double opt-in verification email
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 16:04 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/maalfer/mailerup/commit/da4aed… | patch |
| https://github.com/maalfer/mailerup/releases/tag/v1.1.3 | release-notes |
| https://secur0.com/en/cna/cve-list/cve-2026-75872… | technical-description |
Impacted products
Date Public
2026-08-18 12:43
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