CVE-2026-87955 in Ultimate Table Field Plugin
Summary
by MITRE • 10/22/2026
Missing Authorization vulnerability in Drupal Ultimate Table Field allows Forceful Browsing. This issue affects Ultimate Table Field versions: from 0.0.0 to 1.1.1, from 2.0.0 to 2.0.1.
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Analysis
by VulDB Data Team • 10/22/2026
The identified security flaw resides within the Drupal module known as Ultimate Table Field, specifically impacting version ranges spanning from 0.0.0 through 1.1.1 and extending into versions 2.0.0 up to 2.0.1. This vulnerability is classified fundamentally as a missing authorization issue, which technically manifests as an instance of forceful browsing or insecure direct object reference where the application fails to adequately verify user permissions before processing requests directed at specific data objects or administrative functions exposed by the module. In web application security architecture, such flaws typically arise when developers assume that because a feature is part of a content management system's backend or specialized field handling mechanism, access controls are implicitly enforced by the core framework without explicit checks for each individual endpoint and action within the custom codebase.
From a technical perspective, the vulnerability allows an authenticated attacker with lower-level privileges to interact with functionality intended only for administrators or users with specific roles. By manipulating HTTP requests to target internal API endpoints or form handlers associated with the Ultimate Table Field module, an unauthorized user can bypass standard access control mechanisms. This lack of proper authorization checks means that sensitive operations such as modifying table field configurations, accessing stored data within those fields, or potentially executing administrative tasks related to the structure and display of content are performed without verifying if the requesting entity possesses the requisite rights. The absence of these checks creates a direct path for privilege escalation, allowing attackers to perform actions beyond their assigned role boundaries.
The operational impact of this vulnerability is significant as it compromises the integrity and confidentiality of data managed through the Ultimate Table Field module. Attackers can exploit this flaw to view sensitive information stored in table fields that should be restricted, modify or delete critical configuration settings affecting site behavior, or inject malicious content into field structures if write permissions are not properly validated. This undermines the principle of least privilege within the Drupal environment and can lead to broader system compromise depending on the sensitivity of the data handled by these fields. In enterprise environments where role-based access control is strictly enforced for compliance reasons, this vulnerability represents a critical deviation from security policies, potentially leading to regulatory violations if sensitive personal or financial data stored in table fields is exposed to unauthorized parties.
This issue aligns with CWE-269, which describes Improper Privilege Management, and specifically relates to the concept of missing function level access control where users are able to access functions for which they have no privileges. In terms of offensive security frameworks, this vulnerability facilitates actions categorized under MITRE ATT&CK technique T1078, Valid Accounts, as it allows attackers to leverage existing but insufficiently privileged credentials to perform administrative tasks effectively elevating their status within the application without needing to discover new login credentials or exploit authentication bypasses. The exploitation vector is typically remote and requires only authenticated access with basic user privileges, making it a high-risk vulnerability for any Drupal deployment utilizing this module in production environments where strict role separation is expected.
Mitigation strategies must prioritize immediate remediation by upgrading the Ultimate Table Field module to a version that includes proper authorization checks for all exposed endpoints and administrative functions. Developers should implement explicit access verification logic using Drupal’s built-in permission systems, ensuring that every operation involving table field data validates the current user's role against required permissions before execution. Additionally, security audits should be conducted to review other custom modules within the same installation for similar patterns of missing authorization checks. Implementing a Web Application Firewall with rules targeting common exploitation patterns for privilege escalation can provide temporary defense in depth while patches are applied. Regular penetration testing focusing on horizontal and vertical privilege escalation scenarios is recommended to identify and rectify such gaps before they can be exploited by malicious actors seeking unauthorized access or data exfiltration capabilities within the Drupal ecosystem.