CVE-2026-112239 in AI Integration Extension
Summary
by MITRE • 10/20/2026
The extension provides a backend endpoint that writes a submitted value into a submitted field of a submitted page record. It neither checks the user's permissions nor limits which fields can be changed. Any authenticated backend user can therefore change any property of any page, including its access permissions and configuration, outside the scope granted to them.
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Analysis
by VulDB Data Team • 10/20/2026
The described vulnerability represents a critical failure in server-side authorization controls within a web application or content management system extension. At its core, this is an instance of Insecure Direct Object Reference (IDOR) combined with Broken Access Control, specifically categorized under CWE-284: Improper Access Control and CWE-639: Authorization Bypass Through User-Controlled Key. The technical flaw lies in the backend endpoint's design, which accepts user-supplied input for both the target page record identifier and the specific field to be modified, without performing any validation against the authenticated user's role or permission set. This architectural oversight allows an attacker who has successfully authenticated to the system to manipulate arbitrary data structures that they should not have access to modify.
From a technical perspective, the vulnerability exploits the lack of server-side enforcement for business logic rules regarding resource ownership and administrative privileges. When a request is received, the application blindly trusts the client-supplied parameters defining which page record to update and which field within that record to alter. There are no checks to verify if the requesting user owns the specified page or holds a role with elevated privileges such as administrator or editor rights for global configuration changes. This absence of an authorization middleware or permission check layer means that the integrity of the application's data model is entirely dependent on client-side restrictions, which can be trivially bypassed using standard HTTP manipulation tools like curl or Burp Suite.
The operational impact of this vulnerability is severe and potentially catastrophic depending on the scope of the affected system. An authenticated attacker with low-level privileges could escalate their effective permissions by modifying access control lists (ACLs) associated with specific pages, thereby granting themselves read or write access to sensitive content they were previously denied. More critically, if the extension allows modification of global configuration fields, an attacker could alter site-wide settings, disable security features such as two-factor authentication or input validation filters, or inject malicious scripts into page templates leading to Stored Cross-Site Scripting (XSS). This effectively compromises the confidentiality, integrity, and availability of the entire application environment.
In terms of industry frameworks, this vulnerability aligns with MITRE ATT&CK technique T1078: Valid Accounts, as it relies on legitimate credentials, and specifically relates to privilege escalation behaviors where an actor modifies system configurations or permissions to gain higher-level access. It also reflects common patterns found in CWE-269: Improper Privilege Management, where the application fails to enforce appropriate separation of duties between different user roles. The ability to change any property outside granted scope indicates a fundamental misunderstanding of the principle of least privilege, which is central to secure software design guidelines such as OWASP ASVS and CIS Benchmarks for web applications.
To mitigate this vulnerability, immediate remediation efforts must focus on implementing robust server-side authorization checks at every endpoint that modifies data. Developers should enforce strict role-based access control (RBAC) or attribute-based access control (ABAC) policies that verify the authenticated user's permissions against the requested action before processing any write operations. It is essential to implement an allowlist approach for modifiable fields, ensuring that only predefined, safe attributes can be updated via API calls rather than accepting arbitrary field names from client input. Additionally, implementing object-level authorization checks will ensure that users can only modify resources they explicitly own or are authorized to edit. Regular security audits and static application security testing (SAST) should be integrated into the development lifecycle to detect such logic flaws early in the software delivery process.