CVE-2020-13643 : Security Advisory and Response

An issue was discovered in the SiteOrigin Page Builder plugin before 2.10.16 for WordPress. The live editor feature did not perform nonce verification, enabling forged requests on behalf of an administrator. This allowed malicious JavaScript execution in the victim's browser.

Understanding CVE-2020-13643

This CVE pertains to a vulnerability in the SiteOrigin Page Builder plugin for WordPress.

What is CVE-2020-13643?

The vulnerability in the SiteOrigin Page Builder plugin allowed unauthorized requests to be made, potentially leading to the execution of malicious scripts in a user's browser.

The Impact of CVE-2020-13643

The vulnerability had a high impact on confidentiality, integrity, and availability, with no privileges required for exploitation.

Technical Details of CVE-2020-13643

This section provides technical insights into the CVE.

Vulnerability Description

The issue stemmed from the lack of nonce verification in the live editor feature, enabling the execution of malicious JavaScript.

Affected Systems and Versions

Product: SiteOrigin Page Builder plugin
Vendor: SiteOrigin
Versions affected: Before 2.10.16

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Vector String: CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:R

Mitigation and Prevention

Protect your systems from CVE-2020-13643 with the following steps:

Immediate Steps to Take

Update the SiteOrigin Page Builder plugin to version 2.10.16 or later.
Monitor for any suspicious activities on your WordPress site.

Long-Term Security Practices

Regularly update all plugins and themes on your WordPress site.
Implement security plugins to enhance protection against vulnerabilities.

Patching and Updates

Stay informed about security patches released by SiteOrigin.
Apply patches promptly to mitigate the risk of exploitation.