Noptin <= 3.4.2 - Missing Authorization to Unauthenticated Form Submission

5.3
Missing Authorization
CVE CVE-2024-37456
CVSS 5.3 (Medium)
Publicly Published July 1, 2024
Last Updated July 9, 2024
Researcher Manab Jyoti Dowarah

Description

The Noptin plugin for WordPress is vulnerable to unauthorized modification of data due to insufficient controls on the process_request() function in versions up to, and including, 3.4.2. This makes it possible for unauthenticated attackers to submit on private forms.

References

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Vulnerability Details for Noptin – Newsletter, New Post Notifications & Email Automation

Software Type Plugin
Software Slug newsletter-optin-box (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.4.3, or a newer patched version
Affected Version
  • <= 3.4.2
Patched Version
  • 3.4.3

Recent vulnerabilities in Noptin – Newsletter, New Post Notifications & Email Automation

# Title CVE ID CVSS Researchers Date
1 Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot CVE-2026-103482 5.4 crow October 9, 2026
2 Simple Newsletter Plugin – Noptin < 4.3.3 - Missing Authorization CVE-2026-78146 5.3 Shivamani Vastrala August 26, 2026
3 Noptin <= 3.8.7 - Authenticated (Administrator+) Stored Cross-Site Scripting CVE-2025-49871 4.4 kmaron1n June 12, 2025
4 Simple Newsletter Plugin – Noptin <= 1.10.3 - Unauthenticated CSV Injection CVE-2022-46803 7.2 Kévin Mosbahi (Mika) January 27, 2023
5 WordPress Newsletter Plugin – Noptin < 1.6.5 - Open Redirect CVE-2021-25033 6.1 Trang LKB January 17, 2022

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