CWE
79
EPSS
0.052%
Advisory Published
Updated

CVE-2023-6527: XSS

First published: Wed Dec 06 2023(Updated: )

The Email Subscription Popup plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the HTTP_REFERER header in all versions up to, and including, 1.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Credit: security@wordfence.com

Affected SoftwareAffected VersionHow to fix
I Thirteen Web Solution Email Subscription Popup<1.2.19

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Frequently Asked Questions

  • What is the severity of CVE-2023-6527?

    CVE-2023-6527 is classified as a medium severity vulnerability due to its potential for reflected cross-site scripting.

  • How do I fix CVE-2023-6527?

    To fix CVE-2023-6527, update the Email Subscription Popup plugin to version 1.2.19 or later.

  • Who is affected by CVE-2023-6527?

    All users of the Email Subscription Popup plugin for WordPress up to version 1.2.18 are affected by CVE-2023-6527.

  • What type of vulnerability is CVE-2023-6527?

    CVE-2023-6527 is a reflected cross-site scripting vulnerability caused by insufficient input sanitization.

  • Can unauthenticated users exploit CVE-2023-6527?

    Yes, unauthenticated attackers can exploit CVE-2023-6527 to inject malicious scripts through the HTTP_REFERER header.

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