CVE-2025-39421 HIGH

CVE-2025-39421: WordPress WP Sticky Side Buttons plugin <= 2.1 - Cross Site Request Forgery (CSRF) vulnerability

Vendor Mustafa Kucuk

Product WP Sticky Side Buttons

Weakness CWE-352 · CSRF

Published April 17, 2025

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in Mustafa KUCUK WP Sticky Side Buttons wp-sticky-side-buttons allows Stored XSS.This issue affects WP Sticky Side Buttons: from n/a through <= 2.1.

Explanation of Vulnerability in Simple Terms

02Summary

WP Sticky Side Buttons versions 2.1 and earlier are vulnerable to cross-site request forgery (CSRF) attacks. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without the admin's knowledge or consent. The vulnerability affects the plugin's administrative functions and can lead to unauthorized changes to site settings or content.

What an attacker can do

03Attacker Capabilities

Perform unauthorized actions on the site by tricking an admin into visiting a malicious webpage.

Potential impact on your site

04Site Impact

Attackers can modify plugin settings or site configuration if an admin visits a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Admin must be logged in and visit a page controlled by the attacker.

Key dates

06Disclosure timeline

April 17, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-39421 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/352.html

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