CVE-2026-65554 in AnsPress Plugin
Summary
by MITRE • 08/06/2026
Subscriber Broken Access Control in AnsPress – Question and answer 4.4.4 versions.
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Analysis
by VulDB Data Team • 08/06/2026
The vulnerability identified as broken access control in AnsPress version 4.4.4 represents a critical security flaw that undermines the authentication and authorization mechanisms of this popular WordPress question and answer plugin. This issue allows unauthorized users to bypass normal access restrictions and gain elevated privileges within the system. The vulnerability stems from improper validation of user permissions during various administrative operations, particularly affecting subscriber accounts who should not possess the ability to perform privileged actions within the platform.
The technical implementation of this access control flaw manifests when the application fails to properly verify user roles and capabilities before executing sensitive operations. Attackers can exploit this weakness by manipulating request parameters or leveraging existing user sessions to perform actions that should be restricted to administrators or moderators only. The vulnerability typically occurs in scenarios where the plugin does not adequately check whether the currently authenticated user possesses sufficient privileges to execute specific functions such as editing questions, managing user accounts, or modifying system settings.
From an operational impact perspective, this broken access control vulnerability creates significant risk for websites utilizing AnsPress 4.4.4, particularly those hosting community-driven question and answer platforms with sensitive data or user interactions. An attacker who successfully exploits this flaw could potentially modify or delete content, manipulate user permissions, or even escalate their privileges to administrator level. The attack surface expands when considering that many WordPress installations rely on third-party plugins for core functionality, making the exploitation of such vulnerabilities particularly dangerous as they can compromise entire websites rather than isolated components.
The vulnerability aligns with CWE-285, which specifically addresses improper authorization issues in software systems, and demonstrates how weak access control implementations can lead to privilege escalation attacks. According to ATT&CK framework, this flaw corresponds to T1078.004 which covers valid accounts, as attackers can leverage compromised user credentials or exploit the access control weakness to gain unauthorized access to system resources. The vulnerability also relates to T1546.001, representing changes to Windows registry or system files, though in this context it manifests through WordPress plugin modifications that affect system integrity.
Security recommendations for mitigating this vulnerability include immediate upgrading to a patched version of AnsPress where the access control mechanisms have been properly implemented and validated. System administrators should conduct comprehensive security audits of their WordPress installations to identify other plugins with similar vulnerabilities, as many open source components suffer from inadequate access control checks. Additionally, implementing proper input validation, role-based access controls, and regular security testing can help prevent such issues from occurring in future deployments. The use of web application firewalls and monitoring systems that detect unusual access patterns or privilege escalation attempts can provide additional layers of protection against exploitation of these types of vulnerabilities.