CVE-2021-46118 : Security Advisory and Response

jpress 4.2.0 is vulnerable to remote code execution via io.jpress.module.article.kit.ArticleNotifyKit#doSendEmail. The admin panel provides a function through which attackers can edit the email templates and inject malicious code.

Understanding CVE-2021-46118

This CVE involves a vulnerability in jpress 4.2.0 that allows attackers to execute remote code by manipulating email templates.

What is CVE-2021-46118?

CVE-2021-46118 exposes a security flaw in jpress 4.2.0 that enables remote code execution through the ArticleNotifyKit#doSendEmail function.

The Impact of CVE-2021-46118

The vulnerability can be exploited by attackers to modify email templates in the admin panel and inject malicious code, leading to unauthorized remote code execution.

Technical Details of CVE-2021-46118

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue arises from inadequate validation in the email template editing feature, allowing attackers to insert malicious code.

Affected Systems and Versions

Affected System: jpress 4.2.0
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit the vulnerability by accessing the admin panel's email template editing function to inject malicious code for remote code execution.

Mitigation and Prevention

Protect your system from CVE-2021-46118 with the following steps:

Immediate Steps to Take

Update jpress to the latest version to patch the vulnerability.
Restrict access to the admin panel to authorized personnel only.
Monitor email template changes for suspicious activities.

Long-Term Security Practices

Regularly audit and review code for vulnerabilities.
Implement code reviews and security testing in the development process.

Patching and Updates

Ensure timely installation of security updates and patches for jpress to address known vulnerabilities.