CVE-2021-24498 : Security Advisory and Response
Understand the impact of CVE-2021-24498, an Unauthenticated Reflected Cross-Site Scripting (XSS) vulnerability in Calendar Event Multi View plugin before 1.4.01. Learn how to mitigate and prevent such risks.
This article discusses the details of CVE-2021-24498, a vulnerability found in the Calendar Event Multi View WordPress plugin before version 1.4.01, leading to an Unauthenticated Reflected Cross-Site Scripting (XSS) issue.
Understanding CVE-2021-24498
This section will cover what CVE-2021-24498 is and its impact.
What is CVE-2021-24498?
The Calendar Event Multi View WordPress plugin before version 1.4.01 fails to sanitize or escape the 'start' and 'end' GET parameters, allowing attackers to execute a reflected Cross-Site Scripting attack.
The Impact of CVE-2021-24498
The vulnerability can be exploited by an unauthenticated attacker to inject malicious scripts into the page, possibly leading to unauthorized access or data theft.
Technical Details of CVE-2021-24498
Explore the technical aspects of CVE-2021-24498, including the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The flaw arises from the plugin's failure to properly handle user input, allowing malicious scripts to be executed in the context of the victim's browser.
Affected Systems and Versions
The CVE-2021-24498 affects the Calendar Event Multi View plugin versions before 1.4.01.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a malicious link containing the payload and tricking users into clicking it, causing the script to execute in their browsers.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-24498 and prevent such vulnerabilities in the future.
Immediate Steps to Take
Users are advised to update the Calendar Event Multi View plugin to version 1.4.01 or newer to prevent exploitation of this XSS vulnerability.
Long-Term Security Practices
Developers should always sanitize and escape user input to prevent XSS attacks and regularly audit their code for security vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by the plugin vendor to address known vulnerabilities and enhance the security of WordPress websites.