Subscriber Privilege Escalation in Gato GraphQL

Executive Summary

This is a privilege escalation vulnerability in the Gato GraphQL WordPress plugin versions 19.2.3 and below. It allows users with low-level access, such as Subscriber accounts, to escalate their privileges and gain full control of the website.

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Detection Guidance

Check the installed version of the Gato GraphQL plugin using WordPress admin panel or via command line. Look for version 19.2.3 or below. Use commands like 'wp plugin list' in WordPress CLI or inspect plugin files for version details.

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Impact Analysis

Attackers could exploit this to take over your WordPress site, steal data, or perform unauthorized actions. The vulnerability is actively exploitable and may be targeted in mass-exploit campaigns, requiring immediate action to mitigate.

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Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, which may violate compliance requirements under GDPR and HIPAA. Unauthorized privilege escalation risks exposing personal or health data, potentially resulting in regulatory penalties and loss of trust.

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Mitigation Strategies

Update the Gato GraphQL plugin to version 19.2.4 or later immediately. Alternatively, apply Patchstack's automated mitigation rule to block attacks until the update is completed.

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