CVE-2021-36839 MEDIUM

CVE-2021-36839: WordPress Social Media Follow Buttons Bar plugin <= 4.73 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Space X-Chimp
Product Social Media Follow Buttons Bar (WordPress plugin)
Weakness CWE-79 · XSS
Published September 30, 2022
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 (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Social Media Follow Buttons Bar plugin <= 4.73 at WordPress.

Key dates

02Disclosure timeline

September 30, 2022 CVE published
April 28, 2026 Record updated