Stored XSS in Metagauss ProfileGrid Allows Persistent Script Injection

Executive Summary

This vulnerability is a Stored Cross-site Scripting (XSS) issue in Metagauss ProfileGrid, specifically in the profilegrid-user-profiles-groups-and-communities component. It occurs due to improper neutralization of input during web page generation, which means that malicious scripts can be injected and stored by the application and later executed in the browsers of users who view the affected pages.

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Impact Analysis

The impact of this vulnerability is that attackers can execute malicious scripts in the context of users' browsers when they visit affected pages. This can lead to theft of user credentials, session hijacking, defacement, or distribution of malware, compromising user security and trust.

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Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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Detection Guidance

This vulnerability is a Stored Cross Site Scripting (XSS) issue in the ProfileGrid WordPress plugin versions up to 5.9.8.1. Detection typically involves identifying malicious script injections in user-generated content or web pages generated by the plugin.

Since exploitation requires privileged user interaction (such as submitting forms or clicking crafted links), monitoring logs for unusual input or script tags in profile or group data fields can help detect attempts.

No specific detection commands are provided in the available resources.

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Mitigation Strategies

The primary immediate mitigation step is to update the ProfileGrid plugin to version 5.9.8.2 or later, where the vulnerability has been patched.

Until the update can be applied, users are advised to use mitigation rules provided by Patchstack that can block attacks targeting this vulnerability.

Additionally, restricting privileged user actions and monitoring for suspicious activity can reduce the risk of exploitation.

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