CVE-2021-39170 : What You Need to Know

Pimcore is an open-source data & experience management platform that had a vulnerability in its Asset Metadata Component. This CVE allows an authenticated user to inject XSS code into custom metadata on assets prior to version 10.1.2. The impact includes high confidentiality, integrity, and availability impacts with a CVSS base score of 8. This issue has been assigned CVE-2021-39170.

Understanding CVE-2021-39170

This section provides insights into the vulnerability and its impact on Pimcore.

What is CVE-2021-39170?

CVE-2021-39170 is a vulnerability in the Asset Metadata Component of Pimcore that allows authenticated users to insert XSS code into custom metadata, affecting versions prior to 10.1.2.

The Impact of CVE-2021-39170

The vulnerability has a high impact with a CVSS base score of 8, including high confidentiality, integrity, and availability impacts. An attacker could exploit this to execute malicious scripts in the context of a user's session.

Technical Details of CVE-2021-39170

Explore the technical aspects of the CVE vulnerability in this section.

Vulnerability Description

The issue arises from improper handling of input in the Asset Metadata Component, enabling an attacker to inject XSS code into custom metadata values on assets.

Affected Systems and Versions

Product: Pimcore
Vendor: Pimcore
Versions Affected: < 10.1.2

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Unchanged
Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Mitigation and Prevention

Learn how to mitigate and prevent potential exploits resulting from CVE-2021-39170.

Immediate Steps to Take

Upgrade to Pimcore version 10.1.2 or higher to apply the patch for this vulnerability.
Alternatively, users can manually apply the provided patch as a temporary workaround.

Long-Term Security Practices

Regularly review and update security configurations and code to prevent similar vulnerabilities.
Educate users on secure coding practices to minimize the risk of injection attacks.

Patching and Updates

Ensure all software and systems are regularly updated to the latest versions to address known security issues.