CVE-2022-31127 : Vulnerability Insights and Analysis

NextAuth.js, versions prior to 3.29.8 and 4.0.0 to 4.9.0, mishandles email inputs, potentially allowing attackers to execute cross-site scripting attacks via malicious HTML included in email communications.

Understanding CVE-2022-31127

This CVE impacts NextAuth.js and affects versions < 3.29.8 and >= 4.0.0, < 4.9.0.

What is CVE-2022-31127?

NextAuth.js, designed for Next.js applications, fails to properly sanitize user-supplied input, enabling attackers to inject malicious HTML code into emails, leading to possible cross-site scripting attacks.

The Impact of CVE-2022-31127

The vulnerability poses a high severity risk, with a CVSS base score of 7.1 (High), allowing attackers to trick the email server into sending crafted emails to users, potentially facilitating phishing attacks.

Technical Details of CVE-2022-31127

Vulnerability Description

The vulnerability arises from compromised inputs sent to the email endpoint, allowing the injection of malicious HTML, which could lead to XSS attacks.

Affected Systems and Versions

NextAuth.js versions < 3.29.8 and >= 4.0.0, < 4.9.0 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit the flaw by passing crafted email inputs, triggering the execution of malicious HTML code within emails.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to NextAuth.js version 4.9.0 or above to mitigate the vulnerability. If upgrade is not feasible, ensure proper sanitization of the email parameter passed to

sendVerificationRequest

.

Long-Term Security Practices

Implement regular security audits and secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Refer to the official NextAuth.js documentation for instructions on upgrading to a secure version and follow best practices for secure email handling.