CVE-2026-103072 in VillaTheme Core Plugin
Summary
by MITRE • 10/08/2026
Missing Authorization vulnerability in VillaTheme VillaTheme Core villatheme-core allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects VillaTheme Core: from n/a through 1.0.5.
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Analysis
by VulDB Data Team • 10/08/2026
The identified security flaw within the VillaTheme Core software, specifically affecting versions ranging from initial releases up to version 1.0.5, represents a critical failure in access control mechanisms. This vulnerability is classified as an improper authorization issue where the application fails to enforce adequate restrictions on authenticated users regarding which resources or functions they are permitted to access. In practical terms, this means that while a user may be successfully authenticated into the system, the backend logic does not properly verify whether that specific user has the requisite privileges for the requested action. This gap in security design allows attackers who have obtained valid credentials, even at low privilege levels such as those assigned to subscribers or editors, to perform administrative actions or access sensitive data intended only for higher-privileged roles like administrators.
From a technical perspective, this flaw aligns with CWE-284, which describes Improper Access Control, and is closely related to CWE-639 regarding Authorization Bypass Through User-Controlled Key if the exploit relies on manipulating identifiers. The root cause typically stems from insufficient server-side validation of user roles or permissions before processing requests that modify system state or expose confidential information. Instead of relying solely on client-side checks which can be easily bypassed, a robust security architecture requires strict enforcement at the application layer for every request. In this case, the absence of such rigorous checks creates an environment where horizontal and vertical privilege escalation is possible without requiring additional exploits like SQL injection or cross-site scripting.
The operational impact of this vulnerability is severe as it compromises the integrity and confidentiality of the entire platform managed by VillaTheme Core. An attacker can exploit this misconfiguration to escalate their privileges, potentially gaining full control over the website's content management system. This could lead to unauthorized modification of site settings, insertion of malicious code into themes or plugins, theft of user data including email addresses and hashed passwords, and defacement of the public-facing interface. Furthermore, because many WordPress-based sites rely on these core functionalities for essential operations, compromising them can serve as a foothold for broader network intrusions if the server hosting the application is part of a larger infrastructure.
To mitigate this risk, immediate action must be taken to update the VillaTheme Core plugin or theme to version 1.0.6 or later where the authorization logic has been corrected. For organizations unable to patch immediately due to compatibility concerns with other plugins, implementing compensating controls such as Web Application Firewall rules that monitor for anomalous administrative requests from low-privilege accounts can provide temporary protection. Additionally, enforcing strict principle of least privilege across all user roles and regularly auditing access logs for unusual activity patterns are recommended long-term strategies. It is also advisable to review the ATT&CK framework mapping T1078 Valid Accounts and specifically subtechniques related to account manipulation or persistence through compromised credentials to better understand how this vulnerability fits into broader attack scenarios involving credential abuse.