WordPress Vulnerability Report: April 2021, Part 1

WordPress Vulnerability Roundup: December 2020, Part 2

Written by

Michael Moore

April 7, 2021

Last Updated on April 7, 2021

New WordPress plugin and vulnerabilities were disclosed during the first week of April. This post provides a report of recent WordPress plugin, theme, and core vulnerabilities and what to do if you run one of the vulnerable plugins or themes on your website.

The WordPress Vulnerability Roundup is divided into three different categories: WordPress core, WordPress plugins, and WordPress themes. Each vulnerability includes information on which version you should be running, so be sure to update!

Each vulnerability will also have a severity rating of Low, Medium, High, or Critical. The severity ratings are based on a Common Vulnerability Scoring System designed to help you know how to measure the severity of a vulnerability.

In the April, Part 1 Report

WordPress Core Vulnerabilities

Great news! No new WordPress core vulnerabilities have been disclosed this month.

The latest version of WordPress is currently 5.7. Make sure all your websites are running the latest version of WordPress core.

WordPress Plugin Vulnerabilities

This section covers vulnerabilities in WordPress plugins with instructions on whether to update or remove the vulnerable plugin.

1. Controlled Admin Access

Vulnerability: Improper Access Control to Privilege Escalation
Patched in Version: 1.5.6
Severity: High – CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The vulnerability is patched, so you should update to version 1.5.6+.

2. Advanced Booking Calendar

Vulnerability: Authenticated Reflected Cross-Site Scripting
Patched in Version: 1.6.8
Severity: High – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

The vulnerability is patched, so you should update to version 1.6.8+.

3. Cooked Pro

Vulnerability: Unauthenticated Reflected Cross-Site Scripting
Patched in Version:
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

The vulnerability is patched, so you should update to version

4. SecuPress Free & Pro



This article was written by Michael Moore and originally published on WordPress News and Updates from iThemes – iThemes.

Disclosure: Some of the links in this post are "affiliate links." This means if you click on the link and purchase the product, We may receive an affiliate commission.

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