CVE-2020-5266 Explained : Impact and Mitigation

In the ps_link module for PrestaShop before version 3.1.0, a stored XSS vulnerability exists when creating or editing a link list block with the title field.

Understanding CVE-2020-5266

This CVE involves a stored XSS vulnerability in PrestaShop's ps_link module before version 3.1.0.

What is CVE-2020-5266?

CVE-2020-5266 is a stored XSS vulnerability found in the ps_link module for PrestaShop before version 3.1.0. This vulnerability occurs when creating or editing a link list block with the title field.

The Impact of CVE-2020-5266

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 4.4. It requires low privileges and user interaction to exploit, affecting confidentiality and integrity.

Technical Details of CVE-2020-5266

This section provides technical details about the vulnerability.

Vulnerability Description

A stored XSS vulnerability exists in the ps_link module for PrestaShop before version 3.1.0, specifically when manipulating the title field of a link list block.

Affected Systems and Versions

Product: ps_linklist
Vendor: PrestaShop
Versions Affected: < 3.1.0

Exploitation Mechanism

Attack Complexity: HIGH
Attack Vector: NETWORK
Privileges Required: LOW
User Interaction: REQUIRED
Scope: CHANGED

Mitigation and Prevention

Protecting systems from this vulnerability is crucial.

Immediate Steps to Take

Update PrestaShop to version 3.1.0 or newer to eliminate the vulnerability.
Avoid creating or editing link list blocks with malicious input in the title field.

Long-Term Security Practices

Regularly update and patch PrestaShop to prevent known vulnerabilities.
Educate users on safe practices to mitigate XSS risks.

Patching and Updates

Ensure timely installation of security patches and updates provided by PrestaShop.