CVE-2021-36893 MEDIUM

CVE-2021-36893: WordPress Responsive Tabs plugin <= 4.0.5 - Cross-Site Scripting (XSS) vulnerability

Vendor Wp Darko
Product Responsive Tabs (WordPress plugin)
Weakness CWE-79 · XSS
Published April 11, 2022
Last update April 28, 2026
View on NVD All CVEs

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 (author or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in Responsive Tabs (WordPress plugin) <= 4.0.5

Explanation of Vulnerability in Simple Terms

02Summary

The Responsive Tabs WordPress plugin through version 4.0.5 contains a stored cross-site scripting (XSS) vulnerability. An authenticated administrator can inject malicious JavaScript into tab content that executes in the browsers of site visitors. The vulnerability requires an admin to intentionally craft malicious input, and the injected script runs with the privileges of the affected user's session.

What an attacker can do

03Attacker Capabilities

Inject JavaScript that runs in visitors' browsers when they view pages with the plugin's tabs.

Potential impact on your site

04Site Impact

A compromised admin account can inject malicious scripts affecting all site visitors, potentially stealing credentials or redirecting users.

Conditions required to exploit

05Prerequisites

Attacker must have WordPress administrator privileges and the victim must visit a page containing the malicious tab.

Key dates

06Disclosure timeline

April 11, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-65438 WordPress Message Filter for Contact Form 7 plugin <= 1.6.3.9 - Cross Site Scripting (XSS) vulnerability CVE-2026-65533 WordPress Smart SEO Tool plugin <= 4.1.2 - Cross Site Scripting (XSS) vulnerability CVE-2026-12939 Newsletters <= 4.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link' Shortcode Attribute CVE-2026-15333 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'cozyCustomFont' Block Attribute CVE-2026-17571 Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param'