CVE-2025-3866: Add Google +1 (Plus one) social share Button <= 1.0.0 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Description
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.
Classification
CVE ID: CVE-2025-3866
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Problem Types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: rohanpawale
Product: Add Google +1 (Plus one) social share Button
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 8.21% (scored less or equal to compared to others)
EPSS Date: 2025-05-24 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-3866https://www.wordfence.com/threat-intel/vulnerabilities/id/190a3b11-c6ca-4666-8c7f-b22bb4a4961d?source=cve
https://plugins.trac.wordpress.org/browser/add-google-plus-one-social-share-button/tags/1.0.0/gp_admin_page.php
https://wordpress.org/plugins/add-google-plus-one-social-share-button/