CVE-2021-36843 MEDIUM

CVE-2021-36843: WordPress Floating Social Media Icon plugin <= 4.3.5 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Acurax Technologies
Product Floating Social Media Icon (WordPress plugin)
Weakness CWE-79 · XSS
Published November 26, 2021
Last update April 28, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Authenticated Stored Cross-Site Scripting (XSS) vulnerability discovered in WordPress Floating Social Media Icon plugin (versions <= 4.3.5) Social Media Configuration form. Requires high role user like admin.

Explanation of Vulnerability in Simple Terms

02Summary

The Floating Social Media Icon WordPress plugin through version 4.3.5 contains a stored cross-site scripting (XSS) vulnerability. An authenticated admin can inject malicious JavaScript through plugin settings that executes in the browsers of site visitors. The vulnerability requires admin privileges and user interaction to exploit, but can affect the site's integrity and visitor security.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers when they view the site.

Potential impact on your site

04Site Impact

A compromised admin account can inject malware or steal visitor data without your knowledge.

Conditions required to exploit

05Prerequisites

Admin-level access to the WordPress site; victim must visit a page displaying the affected plugin.

Key dates

06Disclosure timeline

November 26, 2021 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE