CVE-2021-23673 : Security Advisory and Response
Learn about CVE-2021-23673, a Cross-site Scripting (XSS) vulnerability affecting all versions of pekeupload package. Understand the impact, technical details, and mitigation steps.
This CVE-2021-23673 article provides detailed information about a Cross-site Scripting (XSS) vulnerability found in the 'pekeupload' package, affecting all versions. An attacker can execute malicious JavaScript code by tricking a user into uploading a file with JavaScript code in its name.
Understanding CVE-2021-23673
This section dives into the specifics of the CVE-2021-23673 vulnerability.
What is CVE-2021-23673?
CVE-2021-23673 is a Cross-site Scripting (XSS) vulnerability discovered in the 'pekeupload' package that allows an attacker to run JavaScript code on a user's machine.
The Impact of CVE-2021-23673
The impact of this vulnerability is rated as MEDIUM. It could lead to the execution of unauthorized JavaScript code on the victim's machine, potentially compromising confidentiality and integrity.
Technical Details of CVE-2021-23673
This section covers technical aspects of the CVE-2021-23673 vulnerability.
Vulnerability Description
The vulnerability arises when a user uploads a file with JavaScript code in its name, triggering the execution of this code within the application context.
Affected Systems and Versions
All versions of the 'pekeupload' package are affected by this vulnerability, with no specified version being safe.
Exploitation Mechanism
An attacker induces a user to upload a file with malicious JavaScript code in its name, leading to the execution of the JavaScript code in the application.
Mitigation and Prevention
In this section, we discuss the steps to mitigate and prevent exploitation of CVE-2021-23673.
Immediate Steps to Take
Users should avoid uploading files with JavaScript code in their names. Implement input validation to block potential malicious uploads.
Long-Term Security Practices
Developers should sanitize user inputs, validate file names, and implement content security policies to prevent such attacks in the future.
Patching and Updates
Regularly update the 'pekeupload' package to the latest secure version to patch this vulnerability.