CVE-2026-103482

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptinfields e.g. firstname' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticat...

CVE-2026-103482 Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptinfields e.g. firstname' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticat...

CVE-2026-103482

The Simple Newsletter Plugin (Noptin) for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting (XSS) in versions up to and including 4.3.10 . The root cause is insufficient input sanitization and output escaping within the noptin_fields[] parameter. An unauthenticated attacker c...

EUVD-2026-96112

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptinfields e.g. firstname' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticat...

CVE-2026-103482 Simple Newsletter Plugin <= 4.3.10 - Unauthenticated Stored Cross-Site Scripting via Subscriber Custom Field via Manage Preferences Form + Campaign Preview noptin_key Pivot

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptinfields e.g. firstname' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticat...

CVE-2026-103482: Improper Neutralization of Input During Web Page Generation

The Simple Newsletter Plugin – Noptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noptinfields e.g. firstname' parameter in all versions up to, and including, 4.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticat...

EUVD-2026-66291

The Simple Newsletter Plugin WordPress plugin before 4.3.3 does not verify that the requester is the subscriber named in a public request before rendering that subscriber's stored details, allowing unauthenticated users to disclose a subscriber's personal data along with the key that authorises...

PT-2026-81971

The Simple Newsletter Plugin WordPress plugin before 4.3.3 does not verify that the requester is the subscriber named in a public request before rendering that subscriber's stored details, allowing unauthenticated users to disclose a subscriber's personal data along with the key that authorises...

CVE-2026-78146: Exposure of Sensitive Information to an Unauthorized Actor

The Simple Newsletter Plugin WordPress plugin before 4.3.3 does not verify that the requester is the subscriber named in a public request before rendering that subscriber's stored details, allowing unauthenticated users to disclose a subscriber's personal data along with the key that authorises...

PT-2023-15047 · Unknown · Simple Newsletter Plugin – Noptin

Name of the Vulnerable Software and Affected Versions: Simple Newsletter Plugin – Noptin versions 1.9.5 and earlier Description: The issue is related to the improper neutralization of formula elements in a CSV file, which affects the Simple Newsletter Plugin – Noptin. Recommendations: For version...

CVE-2022-46803: Improper Neutralization of Formula Elements in a CSV File

Improper Neutralization of Formula Elements in a CSV File vulnerability in Noptin Newsletter Simple Newsletter Plugin – Noptin.This issue affects Simple Newsletter Plugin – Noptin: from n/a through 1.9.5...