Executive Summary

The WordPress SupportCandy Plugin versions 3.4.6 and below contain an Insecure Direct Object References (IDOR) vulnerability. This flaw allows attackers who have at least Subscriber-level privileges to bypass authorization controls and access sensitive files, folders, or databases by manipulating direct object references.

This vulnerability is categorized under OWASP Top 10's Broken Access Control and has a CVSS score of 7.6, indicating a moderate level of danger and potential for exploitation in widespread attacks.

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Impact Analysis

Exploitation of this vulnerability can lead to unauthorized access to sensitive data within the SupportCandy plugin environment. Attackers can bypass normal authorization checks to view or manipulate files, folders, or databases that should be restricted.

This can result in data breaches, loss of data integrity, and potential disruption of services, as indicated by the CVSS metrics showing high confidentiality impact, low integrity impact, and low availability impact.

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Detection Guidance

The vulnerability allows attackers with at least Subscriber-level privileges to bypass authorization by manipulating direct object references in the SupportCandy WordPress plugin versions 3.4.6 and below.

Detection involves monitoring for unauthorized access attempts or unusual requests targeting SupportCandy plugin endpoints that handle object references.

Since the vulnerability is related to IDOR, you can look for suspicious HTTP requests that include manipulated parameters referencing files, folders, or database entries.

Specific commands are not provided in the available resources, but general approaches include:

• Using web server logs to search for unusual parameter values or access patterns related to SupportCandy plugin URLs.
• Employing tools like curl or wget to test access control by attempting to access objects with different IDs while authenticated as a Subscriber.
• Using WordPress security plugins or scanners that can detect IDOR vulnerabilities or anomalous access patterns.

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Mitigation Strategies

The immediate recommended action is to update the SupportCandy WordPress plugin to version 3.4.7 or later, where the vulnerability has been patched.

If updating immediately is not possible, seek assistance from your hosting provider or a developer to implement temporary mitigations.

Note that no virtual patch is available due to the nature of the vulnerability, so patching the plugin is the primary mitigation.

Additionally, review user privileges and restrict Subscriber-level access where possible to reduce exploitation risk.

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Compliance Impact

The vulnerability allows attackers to bypass authorization and access sensitive files, folders, or databases by manipulating direct object references. This unauthorized access to sensitive data can lead to violations of data protection regulations such as GDPR and HIPAA, which require strict controls over access to personal and sensitive information.

Since the issue falls under OWASP Top 10's Broken Access Control category, it indicates a failure in enforcing proper access restrictions, which is critical for compliance with standards that mandate confidentiality and integrity of data.

Therefore, if exploited, this vulnerability could compromise compliance with common standards and regulations by exposing sensitive data without proper authorization.

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