CVE-2026-86445 in LearnPress Plugin
Summary
by MITRE • 09/16/2026
The LearnPress WordPress plugin before 4.4.7 does not check the user's capabilities in one of its administrative template handlers, allowing unauthenticated attackers to retrieve the text, identifier and type of every published quiz question on the site, along with a keyword search over them, which is content the LearnPress WordPress plugin before 4.4.7 otherwise keeps non-public.
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Analysis
by VulDB Data Team • 09/16/2026
The vulnerability identified in versions of the LearnPress WordPress plugin prior to release 4.4.7 represents a critical failure in access control mechanisms within administrative template handlers. This flaw stems from an insufficient verification of user capabilities, specifically failing to enforce proper authorization checks before processing requests intended for administrative functions. In secure web application architecture, any endpoint or handler that exposes sensitive data or performs privileged operations must strictly validate the identity and permissions of the requesting user against established role-based access control policies. The absence of these checks allows unauthenticated actors to interact with internal system components as if they were legitimate administrators, bypassing standard security boundaries designed to protect site integrity and content confidentiality.
From a technical perspective, this deficiency enables unauthorized retrieval of quiz question metadata including text, identifiers, and types across the entire WordPress installation. LearnPress is widely used for creating online courses and quizzes, meaning it often houses proprietary educational material, exam questions, and assessment data that institutions or businesses consider confidential intellectual property. The vulnerability not only permits bulk extraction of this content but also provides a keyword search functionality over these items. This capability significantly amplifies the risk by allowing attackers to efficiently filter and extract specific high-value targets from large datasets without needing prior knowledge of individual question IDs, thereby facilitating targeted data theft with minimal effort.
The operational impact of this vulnerability extends beyond simple data leakage. For educational institutions, corporate training providers, or certification bodies using LearnPress, the exposure of quiz questions can compromise the validity of their assessments and certifications if attackers use the stolen content to create unauthorized study materials or cheat sheets distributed publicly. Furthermore, the ability to search through question text may reveal sensitive information embedded within exam scenarios, such as internal project names, proprietary methodologies, or confidential business logic that was inadvertently included in test cases. This constitutes a severe breach of data confidentiality and can lead to significant reputational damage and potential legal liabilities regarding intellectual property theft and failure to protect user data under regulations like GDPR or CCPA if personal information is linked to the quiz responses.
This vulnerability aligns with CWE-284, which describes Improper Access Control, as it involves a direct violation of intended access restrictions due to missing authorization checks. It also maps to MITRE ATT&CK technique T1530, Data from Cloud Storage Object Discovery, in the context where internal application data is treated similarly to cloud objects that should be restricted by identity and permissions. Additionally, the ability to search through content relates to CWE-209, which involves the generation of error messages containing sensitive information, although here it manifests as a functional feature abuse rather than an error leak. The exploitation path typically falls under T1530.001 or general data exfiltration techniques where attackers harvest structured data from application interfaces without authentication tokens.
Mitigation strategies must prioritize immediate patching to version 4.4.7 or later, which addresses the missing capability checks in the affected administrative handlers. Administrators should verify that all plugins are updated to their latest stable releases and regularly audit plugin code for similar patterns of insecure direct object references or broken access control. Implementing a Web Application Firewall can provide an additional layer of defense by blocking requests that attempt to access known vulnerable endpoints without valid session cookies or authentication headers. Furthermore, organizations should enforce strict role-based access controls on all WordPress administrative pages and consider using security plugins that monitor for unauthorized API calls or unusual data retrieval patterns. Regular penetration testing focused on authorization flaws is recommended to identify similar vulnerabilities in custom themes or other third-party integrations before they can be exploited by malicious actors seeking to harvest sensitive educational content.