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CVE-2020-18875 : What You Need to Know

Learn about CVE-2020-18875, a vulnerability in DotCMS versions before 5.1 that allows remote attackers to gain privileges by injecting client configurations via vtl files. Find out how to mitigate and prevent this security risk.

DotCMS Incorrect Access Control Vulnerability

Understanding CVE-2020-18875

What is CVE-2020-18875?

The CVE-2020-18875 vulnerability in DotCMS versions before 5.1 enables remote attackers to elevate privileges by injecting client configurations through vtl (velocity) files.

The Impact of CVE-2020-18875

This vulnerability allows unauthorized users to gain elevated privileges, potentially leading to unauthorized access and manipulation of sensitive data.

Technical Details of CVE-2020-18875

Vulnerability Description

The vulnerability arises from incorrect access control mechanisms in DotCMS versions prior to 5.1, enabling attackers to manipulate client configurations via vtl files.

Affected Systems and Versions

        Product: DotCMS
        Vendor: DotCMS
        Versions Affected: All versions before 5.1

Exploitation Mechanism

Attackers exploit this vulnerability by injecting malicious client configurations through vtl files, granting them unauthorized privileges.

Mitigation and Prevention

Immediate Steps to Take

        Update DotCMS to version 5.1 or later to mitigate the vulnerability.
        Monitor and restrict access to vtl files to prevent unauthorized modifications.

Long-Term Security Practices

        Regularly review and update access control policies within DotCMS.
        Conduct security audits to identify and address potential vulnerabilities.

Patching and Updates

        Apply security patches and updates provided by DotCMS promptly to address known vulnerabilities.

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