CVE-2021-40310 : What You Need to Know

OpenSIS Community Edition version 8.0 is affected by a cross-site scripting (XSS) vulnerability in the TakeAttendance.php file via the cp_id_miss_attn parameter.

Understanding CVE-2021-40310

This CVE identifier pertains to a specific vulnerability in OpenSIS Community Edition version 8.0.

What is CVE-2021-40310?

The vulnerability identified as CVE-2021-40310 is a cross-site scripting (XSS) vulnerability in OpenSIS Community Edition version 8.0.

The Impact of CVE-2021-40310

The XSS vulnerability in OpenSIS Community Edition version 8.0 can potentially allow attackers to execute malicious scripts in the context of a user's session, possibly leading to account compromise, data theft, or unauthorized actions.

Technical Details of CVE-2021-40310

This section covers detailed technical information about the CVE.

Vulnerability Description

The vulnerability exists in the TakeAttendance.php file of OpenSIS Community Edition version 8.0, specifically through the cp_id_miss_attn parameter, allowing for cross-site scripting attacks.

Affected Systems and Versions

Affected Version: OpenSIS Community Edition version 8.0
Affected Component: TakeAttendance.php file

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious script code into the cp_id_miss_attn parameter, which gets executed when processed by the vulnerable application.

Mitigation and Prevention

To address CVE-2021-40310, the following steps should be taken:

Immediate Steps to Take

Update to the latest version of OpenSIS Community Edition.
Disable any unnecessary features or parameters that are not essential for the application's functionality.
Implement strict input validation to prevent unauthorized script injection.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and address vulnerabilities promptly.
Provide security training to developers to enhance awareness of secure coding practices.

Patching and Updates

Apply security patches and updates released by the OpenSIS Community Edition project to mitigate the vulnerability effectively.