CVE-2026-109892 in Frontend Admin Plugin
Summary
by MITRE • 10/15/2026
Incorrect Privilege Assignment vulnerability in Shabti Kaplan Frontend Admin by DynamiApps acf-frontend-form-element allows Privilege Escalation.This issue affects Frontend Admin by DynamiApps: from n/a through 3.29.13.
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Analysis
by VulDB Data Team • 10/15/2026
The identified security flaw represents a critical failure in access control mechanisms within the Shabti Kaplan Frontend Admin plugin developed by DynamiApps, specifically affecting versions ranging from initial releases up to version 3.29.13. This vulnerability is classified as an Incorrect Privilege Assignment issue, which fundamentally undermines the integrity of role-based access controls implemented by the application. In a properly secured system, user roles and permissions are strictly enforced at every level of interaction with the software, ensuring that users can only perform actions appropriate to their assigned privileges. However, in this specific instance, the backend logic fails to adequately verify whether the authenticated user possesses the necessary administrative rights before processing requests related to frontend form elements. This oversight creates a direct pathway for unauthorized escalation of privileges, allowing individuals who should be restricted to lower-level operations to execute high-impact administrative functions.
From a technical perspective, this vulnerability typically manifests when the application accepts parameters or inputs that dictate how frontend forms are rendered or managed without sufficiently validating the session context against the required permission levels. An attacker with even basic authenticated access can manipulate these requests to bypass standard authorization checks. By exploiting this logic error, an adversary can gain administrative capabilities such as modifying site configurations, accessing sensitive user data, injecting malicious code into form structures, or altering database entries that should be protected from non-administrative users. The root cause lies in the absence of robust server-side validation for privilege levels during critical operations involving frontend admin features, a common pitfall in plugins that handle dynamic content generation and management without rigorous security auditing.
The operational impact of this vulnerability is severe due to its potential to compromise the entire WordPress installation hosting the plugin. Once an attacker achieves administrative privileges through privilege escalation, they are no longer limited by the constraints applied to subscribers or authors. This elevated access allows for complete control over the website environment, including the ability to install additional malicious plugins, modify theme files, and execute arbitrary code on the server if further vulnerabilities exist in conjunction with this flaw. Such a breach can lead to data exfiltration of sensitive customer information stored within forms, defacement of the public-facing site, or the use of the compromised server as part of a larger botnet infrastructure. The trust model inherent in WordPress administration is effectively nullified for any user who can exploit this specific misconfiguration, turning standard accounts into gateways for full system compromise.
This vulnerability aligns closely with CWE-269, which describes Improper Privilege Management, where the software does not properly assign privileges to actors based on their intended role or identity. Furthermore, in terms of offensive security frameworks like MITRE ATT&CK, this behavior corresponds to techniques associated with Account Manipulation and Defense Evasion, specifically how attackers escalate privileges to maintain persistence and expand access within a compromised environment. The exploitation vector often involves authenticated users manipulating HTTP requests sent to the plugin's administrative endpoints, bypassing client-side restrictions that may falsely suggest security is in place while relying on insufficient server-side checks.
To mitigate this risk, immediate action must be taken by administrators running affected versions of Shabti Kaplan Frontend Admin. The primary remediation step is to upgrade the plugin to a version later than 3.29.13, where the vendor has presumably addressed these authorization flaws through code patches that enforce strict role verification on all administrative actions. Until an update can be applied, administrators should consider restricting access to the WordPress dashboard by IP address if possible and ensuring that no low-privilege users are granted unnecessary capabilities within other plugins or themes that might compound this risk. Regular security audits of custom code and third-party extensions are essential to prevent similar privilege assignment errors in future deployments.