Threat Database

Threat Entry Updated 2026-11-08

Newsletter Optin Box - Security Vulnerability (CVE-2026-119616)

The Noptin – Newsletter, New Post Notifications & Email Automation plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.4.3 via the 'noptin_fields[first_name]' parameter parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. The public Manage Preferences page…

PLUGIN Newsletter Optin Box

CVE-2026-119616

MEDIUM CVSS 5.9 2026-11-07

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-11-04

Newsletter Optin Box - Security Vulnerability (CVE-2026-119468)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Noptin Newsletter Team Noptin newsletter-optin-box allows Stored XSS.This issue affects Noptin: from n/a through 4.4.2.

PLUGIN Newsletter Optin Box

CVE-2026-119468

HIGH CVSS 7.1 2026-11-04

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-10-11

Newsletter Optin Box - Security Vulnerability (CVE-2026-103482)

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptin_fields[] (e.g. first_name)' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The attack chain requires a published campaign post whose body contains a [[subscriber.*]] merge tag; the unauthenticated attacker first POSTs the entity-encoded payload to the public manage_preferences form (which…

PLUGIN Newsletter Optin Box

CVE-2026-103482

MEDIUM CVSS 5.4 2026-10-10

Risk Score

Open Full Technical Breakdown

Threat Entry Updated 2026-06-17

Newsletter Optin Box - Cross-Site Scripting (XSS) (CVE-2025-49871)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Noptin Newsletter Team Noptin newsletter-optin-box allows Stored XSS.This issue affects Noptin: from n/a through

PLUGIN Newsletter Optin Box

CVE-2025-49871

MEDIUM CVSS 5.9 2025-06-17

Risk Score

Open Full Technical Breakdown