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CVE-2022-4876 Explained : Impact and Mitigation

Understand the impact of CVE-2022-4876, a cross-site scripting vulnerability in Kaltura mwEmbed up to version 2.96.rc1. Learn about affected systems, exploitation, and mitigation steps.

A detailed analysis of the CVE-2022-4876 vulnerability affecting Kaltura mwEmbed up to version 2.96.rc1.

Understanding CVE-2022-4876

This section provides insights into the nature and impact of the cross-site scripting vulnerability in Kaltura mwEmbed.

What is CVE-2022-4876?

CVE-2022-4876 is a cross-site scripting vulnerability found in Kaltura mwEmbed up to version 2.96.rc1. It is classified under CWE-79 and involves the manipulation of the argument HTTP_X_FORWARDED_HOST.

The Impact of CVE-2022-4876

The vulnerability allows for remote attacks by exploiting the cross-site scripting possibility, potentially leading to unauthorized access and data manipulation.

Technical Details of CVE-2022-4876

In this section, we delve into the specific technical aspects of the CVE-2022-4876 vulnerability.

Vulnerability Description

The flaw resides in the handling of the file includes/DefaultSettings.php, where the manipulation of HTTP_X_FORWARDED_HOST can trigger cross-site scripting.

Affected Systems and Versions

        Vendor: Kaltura
        Product: mwEmbed
        Affected Version: up to 2.96.rc1

Exploitation Mechanism

An attacker can remotely initiate an attack by manipulating the HTTP_X_FORWARDED_HOST argument, exploiting the cross-site scripting vulnerability.

Mitigation and Prevention

Discover the steps to mitigate the risks posed by CVE-2022-4876 and prevent potential security breaches.

Immediate Steps to Take

Upgrading to version 2.96.rc2 is a crucial immediate step to address and mitigate the CVE-2022-4876 vulnerability.

Long-Term Security Practices

Implementing regular security audits and ensuring timely updates and patches can enhance the long-term security posture of the affected systems.

Patching and Updates

It is recommended to apply the provided patch (13b8812ebc8c9fa034eed91ab35ba8423a528c0b) and consistently update the affected components to maintain system security.

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