CVE-2024-50428 identifies a Missing Authorization vulnerability in the mondula2016 Multi Step Form plugin, which is used to create multi-step forms in web applications. The vulnerability arises from incorrectly configured access control security levels, allowing attackers to bypass authorization checks. This means that unauthorized users can potentially access or manipulate form data or perform actions reserved for privileged users. The affected versions include all releases up to and including version 1.7.21. The vulnerability does not require user interaction or authentication, increasing its risk profile. Although no public exploits have been reported yet, the flaw’s nature suggests it could be leveraged to compromise data confidentiality and integrity within affected web environments. The plugin is commonly used in WordPress and similar CMS platforms, which are widely deployed globally. The lack of a CVSS score indicates that the vulnerability is newly published and awaiting further assessment. The vulnerability’s root cause is an access control misconfiguration, a common and critical security issue that can lead to unauthorized data exposure or modification. Organizations relying on this plugin should prioritize reviewing their access control policies and monitor for updates or patches from the vendor.

The primary impact of CVE-2024-50428 is unauthorized access to or manipulation of data handled by the Multi Step Form plugin. This can lead to confidentiality breaches if sensitive user input or form data is exposed to unauthorized parties. Integrity may also be compromised if attackers alter form submissions or administrative settings without proper authorization. Availability impact is likely limited but could occur if attackers exploit the vulnerability to disrupt form functionality. Organizations using this plugin in customer-facing or internal applications risk data leakage, fraud, or reputational damage. The ease of exploitation, given no authentication or user interaction is required, increases the threat level. This vulnerability could be leveraged as an initial access vector or to escalate privileges within a compromised environment. The scope includes any web application using the affected plugin versions, potentially spanning small businesses to large enterprises. Without timely mitigation, attackers could exploit this flaw to gain unauthorized control over form processes and data flows.

1. Monitor the vendor’s official channels for patches or updates addressing CVE-2024-50428 and apply them promptly once available. 2. In the interim, review and tighten access control configurations related to the Multi Step Form plugin, ensuring that only authorized users can access or modify form data and settings. 3. Restrict access to the plugin’s administrative interfaces using network-level controls such as IP whitelisting or VPNs. 4. Implement web application firewalls (WAFs) with custom rules to detect and block unauthorized attempts to access the plugin’s endpoints. 5. Conduct regular security audits and penetration testing focused on access control mechanisms within web applications using this plugin. 6. Educate developers and administrators about secure configuration practices for plugins and the importance of authorization checks. 7. Consider temporarily disabling the plugin if it is not critical to operations until a secure version is deployed. 8. Monitor logs for suspicious activities related to form access or modifications to detect potential exploitation attempts early.