CVE-2020-5286 Explained : Impact and Mitigation

In PrestaShop between versions 1.7.4.0 and 1.7.6.5, a reflected XSS vulnerability exists when uploading an incorrect file. This issue has been addressed in version 1.7.6.5.

Understanding CVE-2020-5286

This CVE involves a reflected XSS vulnerability in PrestaShop versions 1.7.4.0 to 1.7.6.5.

What is CVE-2020-5286?

CVE-2020-5286 is a security vulnerability in PrestaShop that allows for reflected XSS attacks during the upload of a malicious file.

The Impact of CVE-2020-5286

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 4.1. It requires low privileges and user interaction to exploit, affecting confidentiality and integrity.

Technical Details of CVE-2020-5286

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves improper neutralization of input during web page generation, leading to cross-site scripting (XSS) attacks.

Affected Systems and Versions

Product: PrestaShop
Vendor: PrestaShop
Versions Affected: >= 1.7.4.0, < 1.7.6.5

Exploitation Mechanism

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

Mitigation and Prevention

To address CVE-2020-5286, follow these mitigation strategies:

Immediate Steps to Take

Update PrestaShop to version 1.7.6.5 or later.
Be cautious when uploading files to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and update security patches.
Educate users on safe file uploading practices to prevent XSS vulnerabilities.

Patching and Updates

Ensure that PrestaShop is regularly updated to the latest version to mitigate known vulnerabilities.