CVE-2021-36885 MEDIUM

CVE-2021-36885: WordPress Contact Form 7 Database Addon – CFDB7 plugin <= 1.2.6.1 - Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Ciphercoin
Product Contact Form 7 Database Addon – CFDB7 (WordPress plugin)
Weakness CWE-79 · XSS
Published December 22, 2021
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

6.1/10
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:N

What the vulnerability does

01Description

Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability discovered in Contact Form 7 Database Addon – CFDB7 WordPress plugin (versions <= 1.2.6.1).

Explanation of Vulnerability in Simple Terms

02Summary

The CFDB7 plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 1.2.6.1. An attacker can inject malicious scripts into form submissions that execute when site administrators or other users view the stored data. The vulnerability requires user interaction—typically a victim clicking a malicious link—but can affect multiple users across the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in the browsers of site admins and users viewing form submissions.

Potential impact on your site

04Site Impact

Site admins viewing form data in the plugin dashboard could have their sessions hijacked or credentials stolen.

Conditions required to exploit

05Prerequisites

No authentication required. Victim must click a link or visit a page containing the malicious payload.

Key dates

06Disclosure timeline

December 22, 2021 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-65446 WordPress Kali Forms plugin <= 2.4.18 - Cross Site Scripting (XSS) vulnerability CVE-2026-16597 GTM4WP <= 1.22.3 - Unauthenticated Stored Cross-Site Scripting via WooCommerce Billing Fields CVE-2026-15100 Post Grid Gutenberg Blocks <= 5.0.32 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute CVE-2026-16685 Download Manager <= 3.3.66 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'icon' Shortcode Attribute CVE-2026-6454 Firelight Lightbox <= 2.3.20 - Authenticated (Contributor+) Stored DOM Cross-Site Scripting via PDF beforeLoad 'href' Attribute