CVE-2021-25033 Noptin < 1.6.5 - Open Redirect

Medium 6.1 Published Updated

An attacker can redirect users to malicious sites via an unvalidated parameter in the WordPress Newsletter Plugin, potentially facilitating phishing attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-25033?

CVE-2021-25033 is a medium-severity vulnerability in Unknown WordPress Newsletter Plugin – Noptin, published on 14 Feb 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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

Weakness: CWE-601

Which versions are affected by CVE-2021-25033?

It affects 1 product.

Products include Noptin Noptin.

How do I fix CVE-2021-25033?

No fix has been published for CVE-2021-25033 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-25033 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25033 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-gxrq-7hvq-53q3.

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