WordPress Newsletter Plugin – Noptin < 1.6.5 - Open Redirect

6.1
URL Redirection to Untrusted Site ('Open Redirect')
CVE CVE-2021-25033
CVSS 6.1 (Medium)
Publicly Published January 17, 2022
Last Updated January 22, 2024
Researcher Trang LKB

Description

The WordPress Newsletter Plugin WordPress plugin before 1.6.5 does not validate the to parameter before redirecting the user to its given value, leading to an open redirect issue.

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Vulnerability Details for Simple Newsletter Plugin – Noptin

Software Type Plugin
Software Slug newsletter-optin-box (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.6.5, or a newer patched version
Affected Version
  • < 1.6.5
Patched Version
  • 1.6.5

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