CVE-2023-26140 : What You Need to Know

This CVE record involves a vulnerability in the package @excalidraw/excalidraw that can lead to Cross-site Scripting (XSS) attacks.

Understanding CVE-2023-26140

This section will delve into the details of CVE-2023-26140, including what it is, its impact, technical details, and mitigation strategies.

What is CVE-2023-26140?

CVE-2023-26140 is a vulnerability found in versions of the package @excalidraw/excalidraw from 0.0.0. It exposes systems to Cross-site Scripting (XSS) attacks through embedded links in whiteboard objects due to inadequate input sanitization.

The Impact of CVE-2023-26140

The impact of this vulnerability is categorized as medium severity with a base score of 6.1. It can lead to Cross-site Scripting (XSS) attacks, potentially compromising the confidentiality and integrity of user information.

Technical Details of CVE-2023-26140

In this section, we will explore the specific technical aspects of CVE-2023-26140.

Vulnerability Description

The vulnerability in @excalidraw/excalidraw 0.0.0 allows attackers to execute Cross-site Scripting (XSS) attacks by embedding malicious links in whiteboard objects due to the lack of proper input sanitization.

Affected Systems and Versions

The affected product is "@excalidraw/excalidraw" version 0.0.0. All versions less than "*" are vulnerable to this XSS issue.

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting crafted links into whiteboard objects, tricking users into executing malicious scripts within their browsers.

Mitigation and Prevention

Mitigating CVE-2023-26140 requires immediate actions to secure systems and prevent the exploitation of the XSS vulnerability.

Immediate Steps to Take

Update the @excalidraw/excalidraw package to a non-vulnerable version.
Implement input sanitization measures to validate and sanitize user-generated content.
Educate users about the risks of interacting with unknown or suspicious links.

Long-Term Security Practices

Regularly monitor and update software dependencies to address known vulnerabilities promptly.
Conduct security audits and code reviews to identify and remediate XSS vulnerabilities early in the development lifecycle.

Patching and Updates

Refer to the provided references for patch details and update notifications:

https://security.snyk.io/vuln/SNYK-JS-EXCALIDRAWEXCALIDRAW-5841658
https://github.com/excalidraw/excalidraw/pull/6728
https://github.com/excalidraw/excalidraw/commit/b33fa6d6f64d27adc3a47b25c0aa55711740d0af