CVE-2019-9870 : What You Need to Know

The w8tcha oEmbed plugin's plugin.js file, which was released prior to 2019-03-14 for CKEditor, has a flaw in properly handling SCRIPT elements.

Understanding CVE-2019-9870

This CVE entry describes a vulnerability in the w8tcha oEmbed plugin's plugin.js file for CKEditor, affecting versions released before 2019-03-14.

What is CVE-2019-9870?

The vulnerability in the plugin.js file of the w8tcha oEmbed plugin for CKEditor involves improper handling of SCRIPT elements, potentially leading to security issues.

The Impact of CVE-2019-9870

The vulnerability could allow an attacker to execute malicious scripts within the context of the affected CKEditor instance, posing a risk of cross-site scripting (XSS) attacks.

Technical Details of CVE-2019-9870

This section provides more technical insights into the CVE.

Vulnerability Description

The flaw in plugin.js of the w8tcha oEmbed plugin before 2019-03-14 for CKEditor mishandles SCRIPT elements, creating a security risk.

Affected Systems and Versions

Affected Product: Not applicable
Affected Vendor: Not applicable
Affected Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious SCRIPT elements into the CKEditor instance, potentially leading to XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2019-9870 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable or remove the w8tcha oEmbed plugin from CKEditor instances until a patch is available.
Regularly monitor for security updates and patches from the plugin vendor.

Long-Term Security Practices

Implement content security policies (CSP) to mitigate XSS risks.
Educate users on safe practices to prevent script injection vulnerabilities.

Patching and Updates

Apply patches or updates provided by the w8tcha oEmbed plugin for CKEditor to address the vulnerability.