CVE-2021-20743 : Security Advisory and Response
Learn about CVE-2021-20743, a critical cross-site scripting flaw in EC-CUBE Email newsletters management plugin, allowing remote attackers to execute arbitrary scripts. Find out the impact, affected versions, and mitigation steps.
A detailed analysis of CVE-2021-20743, a cross-site scripting vulnerability in EC-CUBE Email newsletters management plugin.
Understanding CVE-2021-20743
This CVE involves a security flaw in the Email newsletters management plugin for EC-CUBE 3.0 series, allowing remote attackers to execute arbitrary scripts.
What is CVE-2021-20743?
CVE-2021-20743 is a cross-site scripting vulnerability in EC-CUBE Email newsletters management plugin for versions prior to 1.0.4. It enables malicious actors to inject and execute scripts on targeted systems.
The Impact of CVE-2021-20743
The vulnerability permits remote attackers to inject arbitrary scripts and potentially perform malicious operations on the affected system. This could lead to unauthorized access or data theft.
Technical Details of CVE-2021-20743
A deeper look into the technical aspects of the CVE.
Vulnerability Description
The flaw allows remote attackers to inject malicious scripts by directing users to crafted web pages. This could lead to unauthorized script execution on the victim's browser.
Affected Systems and Versions
EC-CUBE Email newsletters management plugin versions prior to 1.0.4 are impacted by this vulnerability. Users with these versions are at risk of exploitation.
Exploitation Mechanism
By enticing a user to visit a specially created page, an attacker can inject and execute scripts on the user's system, potentially leading to unauthorized actions.
Mitigation and Prevention
Preventive measures and actions to mitigate the risks of CVE-2021-20743.
Immediate Steps to Take
Users are advised to update the EC-CUBE Email newsletters management plugin to version 1.0.4 or later to mitigate the vulnerability. Additionally, be cautious while following links from untrusted sources.
Long-Term Security Practices
Regularly update software and plugins to the latest versions to protect against known vulnerabilities. Educate users on safe browsing practices to prevent successful exploitation of XSS flaws.
Patching and Updates
Stay informed about security updates from EC-CUBE CO.,LTD. and apply patches promptly to ensure your systems are protected against potential threats.