What is the severity of CVE-2025-3866?

CVE-2025-3866 is classified as a medium severity vulnerability due to its potential impact on user interactions through Cross-Site Request Forgery.

How do I fix CVE-2025-3866?

To fix CVE-2025-3866, update the Google +1 (Plus one) social share Button plugin to the latest version, above 1.0.0.

What is the exploit method for CVE-2025-3866?

CVE-2025-3866 can be exploited through missing or incorrect nonce validation on the google-plus-one-share-button page.

Which versions are impacted by CVE-2025-3866?

All versions of the Google +1 (Plus one) social share Button plugin up to and including version 1.0.0 are impacted by CVE-2025-3866.

Can CVE-2025-3866 affect user data?

Yes, CVE-2025-3866 can potentially allow unauthorized actions that could affect user data due to the Cross-Site Request Forgery vulnerability.

Vulnerability/
CVE-2025-3866

medium

6.1

CWE

EPSS

0.031%

25/4/2025

CVE-2025-3866: Add Google +1 (Plus one) social share Button <= 1.0.0 - Cross-Site Request Forgery to Stored Cross-Site Scripting

First published: Fri Apr 25 2025(Updated: )

The Add Google +1 (Plus one) social share Button plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing or incorrect nonce validation on the google-plus-one-share-button page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Credit: security@wordfence.com

Affected Software	Affected Version	How to fix
Google +1	<=1.0.0

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Frequently Asked Questions

What is the severity of CVE-2025-3866?
CVE-2025-3866 is classified as a medium severity vulnerability due to its potential impact on user interactions through Cross-Site Request Forgery.
How do I fix CVE-2025-3866?
To fix CVE-2025-3866, update the Google +1 (Plus one) social share Button plugin to the latest version, above 1.0.0.
What is the exploit method for CVE-2025-3866?
CVE-2025-3866 can be exploited through missing or incorrect nonce validation on the google-plus-one-share-button page.
Which versions are impacted by CVE-2025-3866?
All versions of the Google +1 (Plus one) social share Button plugin up to and including version 1.0.0 are impacted by CVE-2025-3866.
Can CVE-2025-3866 affect user data?
Yes, CVE-2025-3866 can potentially allow unauthorized actions that could affect user data due to the Cross-Site Request Forgery vulnerability.

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