CVE-2026-39680: Medium Vulnerability in MWP Development Diet Calorie Calculator

A missing authorization vulnerability has been identified in the MWP Development Diet Calorie Calculator. This vulnerability allows exploiting incorrectly configured access control security levels, which can result in unauthorized access to sensitive functionality. The affected versions include all prior to 1.1.1. As this vulnerability is classified with a CVSS score of 5.3, it falls into the medium severity category, indicating a moderate level of risk.

Risk to organizations includes potential unauthorized access to user data and application functionalities, which could be exploited by malicious actors. The status of this vulnerability is currently deferred, indicating that it has not yet been addressed by the vendor. Given the nature of the vulnerability, organizations should assess their exposure and consider prioritizing remediation efforts.

With a CVSS base score of 5.3 and an exploitability score of 3.9, the vulnerability is characterized by a low attack complexity and requires no privileges or user interaction to exploit. Organizations should be aware that while there are no confirmed public exploits, the potential risk necessitates a proactive approach to security management.

Organizations should prioritize patching immediately. The lack of a known exploit does not mitigate the risk, and defensive measures should be taken to secure systems against this vulnerability.

Vulnerability Details

The missing authorization vulnerability in the MWP Development Diet Calorie Calculator allows the exploitation of incorrectly configured access control security levels. The CVE ID is CVE-2026-39680, and it affects versions of the Diet Calorie Calculator up to and including 1.1.1. The vulnerability is classified under CWE-862 for missing authorization.

The vulnerability was published on April 8, 2026, and has a CVSS score of 5.3, indicating a medium severity level. The attack vector is network-based with low complexity and no required privileges or user interaction.

Technical Analysis

The root cause of the vulnerability is due to insufficient authorization checks on actions that can be performed within the Diet Calorie Calculator plugin. Attackers may leverage this flaw to gain access to restricted functionalities without proper authorization.

The attack vector is network-based, allowing attackers to exploit the vulnerability remotely. The attack complexity is low, making it easier for potential attackers to exploit the flaw without needing significant technical resources or knowledge.

No privileges are required to exploit this vulnerability, and user interaction is not necessary, further increasing the risk. The impact on confidentiality is none, while the integrity impact is low, indicating potential unauthorized modification of data.

Risk & Impact Analysis

The real-world deployment risk associated with this vulnerability is significant, as it allows unauthorized access to the functionalities of the Diet Calorie Calculator. Organizations using this plugin need to be aware of the potential for unauthorized access to sensitive data.

Organizations should assess their risk exposure and prioritize remediation efforts. The vulnerability's low complexity and lack of required privileges heighten the urgency for timely action. While the CVSS score indicates a medium severity level, the potential blast radius of exploitation can lead to unauthorized access and manipulation of user data.

Affected Versions

The Diet Calorie Calculator plugin is affected in all versions up to and including 1.1.1. Organizations should ensure that they are running a patched version to mitigate the risks associated with this vulnerability.

Mitigation & Remediation

Organizations should prioritize applying updates to the Diet Calorie Calculator plugin to address this vulnerability. If a patch is not available, consider implementing workarounds, such as restricting access to the plugin's functionalities until an update can be applied.

Configuration hardening should involve reviewing access controls to ensure that unauthorized users cannot access sensitive functionalities. Network controls, such as firewalls and intrusion detection systems, should be configured to monitor and restrict unauthorized access attempts.

Monitoring recommendations include reviewing logs for unusual access patterns and implementing alerts for suspicious activities related to the Diet Calorie Calculator.

For detailed guidance on improving security, organizations can refer to the penetration testing services offered by AppSecure.

Detection Guidance

Organizations should monitor logs for unusual access patterns that may indicate attempts to exploit this vulnerability. Behavioral anomalies, such as unexpected access to restricted functionalities, should also be flagged for further investigation.

Network signatures can be developed to identify traffic patterns that indicate exploitation attempts. System changes related to user permissions and access controls should be closely monitored to ensure compliance with security policies.

AppSecure Threat Intelligence Insight

This vulnerability highlights the ongoing challenges organizations face with access control configurations. It serves as a reminder of the importance of regular security audits and reviews of application configurations to safeguard against unauthorized access.

Organizations should adopt a proactive approach to security by implementing robust access control measures and ensuring that all components of their applications are regularly updated and monitored. For further information on enhancing application security, organizations can refer to resources such as the vulnerability management program and the penetration testing methodology guides available through AppSecure.

Additionally, understanding the impact of common vulnerabilities can help organizations prepare better defensive strategies. For insights into recent trends, organizations can explore our 2025 vulnerability exposure severity trends report.