CVE-2022-29421 MEDIUM

CVE-2022-29421: WordPress Countdown & Clock plugin <= 2.3.2 - Reflected Cross-Site Scripting (XSS) vulnerability

Vendor Adam Skaat
Product Countdown & Clock (WordPress plugin)
Weakness CWE-79 · XSS
Published May 6, 2022
Last update April 28, 2026

CVSS base score

4.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Reflected Cross-Site Scripting (XSS) vulnerability in Adam Skaat's Countdown & Clock plugin on WordPress via &ycd_type vulnerable parameter.

Explanation of Vulnerability in Simple Terms

02Summary

The Countdown & Clock WordPress plugin through version 2.3.2 contains a stored cross-site scripting (XSS) vulnerability. An attacker can inject malicious JavaScript that executes in the browsers of site visitors. The vulnerability requires user interaction—typically a victim clicking a malicious link—but affects all users who view the compromised content. This can lead to session hijacking, credential theft, or malware distribution.

What an attacker can do

03Attacker Capabilities

Inject JavaScript code that runs in visitors' browsers when they view the plugin's content.

Potential impact on your site

04Site Impact

Visitors' sessions and credentials can be stolen; malware or phishing content can be injected into your site.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

May 6, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE