CVE-2021-32731 Explained : Impact and Mitigation

XWiki Platform is a generic wiki platform. Between versions 13.1RC1 and 13.1, the reset password form exposes user email addresses. The issue has been patched in XWiki 13.2RC1.

Understanding CVE-2021-32731

This CVE involves the revelation of user email addresses through the reset password form in XWiki Platform.

What is CVE-2021-32731?

CVE-2021-32731 is a vulnerability in XWiki Platform versions 13.1RC1 to 13.1 that allows the exposure of user email addresses by merely providing the username in the reset password form.

The Impact of CVE-2021-32731

This vulnerability could lead to unauthorized access to user email addresses, compromising confidentiality and privacy.

Technical Details of CVE-2021-32731

This section outlines the technical specifics of the vulnerability.

Vulnerability Description

The issue lies in the reset password form of XWiki Platform versions 13.1RC1 to 13.1, where providing the username triggers the disclosure of the associated email address.

Affected Systems and Versions

XWiki Platform versions 13.1RC1 to 13.1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the reset password form to reveal user email addresses.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2021-32731.

Immediate Steps to Take

Upgrade to XWiki 13.2RC1 or apply the manual workaround by modifying

resetpasswordinline.vm

to address the vulnerability.

Long-Term Security Practices

Enhance security practices, such as regularly updating software and monitoring for security advisories.

Patching and Updates

Stay updated with patches and security fixes released by XWiki to safeguard against known vulnerabilities.