CVE-2026-119491 in Media Library Assistant Plugin
Summary
by MITRE • 11/07/2026
Missing Authorization vulnerability in David Lingren Media LIbrary Assistant media-library-assistant allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Media LIbrary Assistant: from n/a through 3.43.
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Analysis
by VulDB Data Team • 11/07/2026
The identified security flaw resides within the David Lingren Media Library Assistant software, specifically affecting versions ranging from non-existent initial releases up to version 3.43. This vulnerability is classified as a missing authorization issue, which fundamentally represents an incorrect implementation of access control mechanisms. In secure application architecture, authorization determines what actions an authenticated user is permitted to perform based on their assigned role or privileges. When this mechanism fails, the software does not adequately verify whether the current session possesses the necessary permissions before executing sensitive operations or exposing restricted data. This specific failure mode aligns directly with CWE-284, which describes Improper Access Control, and often correlates with CWE-862, Missing Authorization, indicating that the application logic lacks sufficient checks to enforce policy constraints on resource access.
From a technical perspective, this vulnerability allows an attacker who has achieved some level of authentication or session establishment to bypass intended security boundaries. Because the software incorrectly configures its access control levels, it may grant elevated privileges to lower-privileged users or allow unauthenticated actors to interact with administrative functions. The operational impact is significant as it undermines the integrity and confidentiality of the media library data managed by the application. An adversary could potentially view private files, modify metadata, delete content, or alter system configurations without proper oversight. This lack of enforcement creates a pathway for privilege escalation, where a standard user can effectively assume the role of an administrator, leading to full compromise of the underlying server environment hosting the media library assistant service.
The exploitation vector typically involves manipulating HTTP requests to target endpoints that should be restricted. Since the authorization check is missing or incorrectly implemented at the application logic layer rather than just in network firewalls, standard perimeter defenses may not detect this abuse. This aligns with MITRE ATT&CK technique T1078, Valid Accounts, where attackers leverage legitimate credentials but exploit poor session management and access control policies to gain unauthorized influence over system resources. The risk is compounded by the fact that media library applications often handle large volumes of sensitive data, making them attractive targets for data exfiltration or ransomware deployment if the underlying file system permissions are also compromised through this application-level flaw.
To mitigate this vulnerability, immediate action must be taken to upgrade the David Lingren Media Library Assistant software to a version later than 3.43, where these access control checks have presumably been corrected by the vendor. In environments where upgrading is not immediately feasible, administrators should implement compensating controls such as strict network segmentation to isolate the application from untrusted networks and enforce role-based access control at the infrastructure level using reverse proxies or web application firewalls that can validate user roles before forwarding requests to the backend service. Additionally, regular security audits focusing on authentication flows and session management are recommended to ensure no other instances of improper access control exist within the deployment. Monitoring logs for anomalous privilege escalation attempts will also aid in detecting potential exploitation activities while patching efforts are underway.