CVE-2022-47433 in Multi Rating Plugin
Summary
by MITRE • 03/29/2023
Unauth. Reflected Cross-Site Scripting vulnerability in Daniel Powney Multi Rating plugin <= 5.0.5 versions.
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Analysis
by VulDB Data Team • 01/07/2026
The vulnerability CVE-2022-47433 represents an unauthorized reflected cross-site scripting flaw discovered in the Multi Rating plugin developed by Daniel Powney, affecting versions up to and including 5.0.5. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting attacks where malicious scripts are injected into web applications through user input. The issue manifests when the plugin fails to properly sanitize or escape user-supplied data before reflecting it back to the user's browser, creating an avenue for attackers to execute malicious code within the context of the victim's session.
The technical implementation of this vulnerability occurs within the plugin's handling of HTTP parameters, particularly those related to rating functionality and user interaction features. When users interact with the plugin's interface or when the plugin processes external requests containing malicious payloads, the input validation mechanisms prove insufficient. The reflected nature of the vulnerability means that the malicious script is not stored on the server but is instead reflected back to the user through the application's response, typically via URL parameters or form submissions. Attackers can craft malicious URLs containing JavaScript payloads that, when clicked by an unsuspecting user, execute in the victim's browser context with the privileges of that user.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a range of malicious activities including session hijacking, credential theft, data exfiltration, and privilege escalation within the affected WordPress environment. The reflected nature makes this vulnerability particularly dangerous because it can be delivered through phishing emails, malicious advertisements, or compromised websites, requiring minimal interaction from the victim beyond simply visiting the malicious page. This vulnerability can be exploited in conjunction with other attacks to establish persistent access or to escalate privileges within the WordPress installation, potentially leading to complete compromise of the affected site.
Mitigation strategies for CVE-2022-47433 should prioritize immediate patching of the Multi Rating plugin to version 5.0.6 or later, as this represents the official fix provided by the vendor. Organizations should also implement comprehensive input validation and output escaping mechanisms throughout their WordPress installations, particularly for user-generated content and plugin interactions. Network-based protections such as web application firewalls can provide additional layers of defense by detecting and blocking known malicious payloads. Security monitoring should include regular vulnerability scanning of WordPress installations and plugin versions to identify outdated components. The vulnerability aligns with ATT&CK technique T1566.001, which involves the use of malicious links in phishing campaigns, and demonstrates the importance of maintaining up-to-date software and implementing proper security controls to prevent exploitation of such vulnerabilities in web applications.