CVE-2023-24810 : What You Need to Know

This CVE involves a cross-site scripting (XSS) vulnerability in Misskey related to authentication callback, impacting versions below 13.3.1 of the platform.

Understanding CVE-2023-24810

This section will provide insights into what CVE-2023-24810 entails, its impact, technical details, and mitigation strategies.

What is CVE-2023-24810?

CVE-2023-24810 is a vulnerability in the Misskey platform, an open-source decentralized social media platform. The issue arises from inadequate validation of the redirect URL during

miauth

authentication, allowing for the execution of arbitrary JavaScript if a user permits the link.

The Impact of CVE-2023-24810

The vulnerability poses a high severity risk with a base score of 7.1 in the CVSS v3.1 scoring system. Attackers could exploit this flaw to execute malicious scripts on a user's browser, potentially leading to unauthorized access to sensitive information or account compromise.

Technical Details of CVE-2023-24810

This section delves into the specific technical aspects of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Misskey arises from inadequate validation of the redirect URL during

miauth

authentication, enabling the execution of arbitrary JavaScript when a user allows the link.

Affected Systems and Versions

All versions of Misskey below 13.3.1, including 12.x, are impacted by this XSS vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious URLs that, when interacted with by a user, execute arbitrary JavaScript within the context of the Misskey platform, potentially leading to XSS attacks.

Mitigation and Prevention

In light of CVE-2023-24810, it is crucial for users and administrators to take immediate steps to mitigate the risk and prevent potential exploitation of this vulnerability.

Immediate Steps to Take

Upgrade to the fixed version 13.3.1 of Misskey to address the XSS vulnerability.
Users unable to upgrade should refrain from allowing authentication of untrusted apps to avoid potential exploitation.

Long-Term Security Practices

Implement security best practices such as input validation, output encoding, and secure coding principles to prevent XSS attacks and strengthen overall application security.

Patching and Updates

Regularly monitor security advisories and apply patches and updates promptly to ensure that known vulnerabilities are addressed in a timely manner, reducing the risk of exploitation.