CVE-2021-30111 Explained : Impact and Mitigation

A stored XSS vulnerability exists in Web-School ERP V 5.0 via (Add Events) in the event name and description fields. An attacker can inject JavaScript code that will be stored in the page and executed when any visitor views the events.

Understanding CVE-2021-30111

This CVE identifies a stored XSS vulnerability in Web-School ERP V 5.0, allowing attackers to inject malicious JavaScript code.

What is CVE-2021-30111?

The CVE-2021-30111 refers to a stored XSS vulnerability present in Web-School ERP V 5.0. This flaw allows attackers to inject harmful JavaScript code through the event name and description fields.

The Impact of CVE-2021-30111

The impact of this vulnerability is significant as it enables attackers to execute malicious scripts within the context of the Web-School ERP application, potentially leading to unauthorized actions and data theft.

Technical Details of CVE-2021-30111

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in the inadequate validation of user inputs in the event name and description fields, allowing attackers to store and execute malicious scripts within the application.

Affected Systems and Versions

Web-School ERP V 5.0 is specifically affected by this vulnerability, putting instances of this version at risk.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting crafted JavaScript code into the event name and description fields, which will then be stored within the application and executed when accessed by visitors.

Mitigation and Prevention

Here are the necessary steps to mitigate and prevent potential exploits leveraging CVE-2021-30111.

Immediate Steps to Take

Users are advised to update to a patched version of Web-School ERP that includes fixes for this vulnerability. Additionally, input validation and output encoding should be enforced to prevent malicious script injections.

Long-Term Security Practices

Implement regular security audits, educate users on safe coding practices, and maintain awareness of security vulnerabilities to enhance overall system security.

Patching and Updates

Vendors should release patches promptly to address CVE-2021-30111 and users must ensure they apply these patches as soon as they are available to mitigate the risk of exploitation.