CVE-2024-52511 in Tables
Summary
by MITRE • 11/15/2024
Nextcloud Tables allows users to to create tables with individual columns. By directly specifying the ID of a table or view, a malicious user could blindly insert new rows into tables they have no access to. It is recommended that the Nextcloud Tables is upgraded to 0.8.0.
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Analysis
by VulDB Data Team • 10/01/2025
The vulnerability identified as CVE-2024-52511 affects Nextcloud Tables, a collaborative data management application within the Nextcloud platform that enables users to create and manage structured data through customizable tables and views. This security flaw represents a critical access control bypass that undermines the fundamental security model of the application. The vulnerability stems from insufficient authorization checks when processing direct table or view ID parameters, allowing malicious actors to exploit blind insertion mechanisms without proper permissions.
The technical implementation of this vulnerability resides in the application's handling of table and view identifiers within its API endpoints. When users attempt to insert new rows into tables, the system should verify that the requesting user possesses appropriate permissions for the target table or view before executing the operation. However, the flaw occurs in the validation logic where direct ID parameters are accepted without proper access verification, enabling attackers to manipulate the system through crafted requests that specify arbitrary table identifiers. This blind insertion capability operates outside normal access controls, creating a pathway for unauthorized data modification.
The operational impact of this vulnerability extends beyond simple data integrity concerns to encompass potential data leakage and system compromise. Attackers with access to the Nextcloud environment can exploit this weakness to insert malicious data into tables they should not be able to modify, potentially leading to information disclosure, data corruption, or the creation of backdoors within shared datasets. The vulnerability affects all versions prior to 0.8.0, making it particularly concerning for organizations that have not yet applied the necessary security patches. The attack vector requires minimal privileges to exploit, as users only need access to the Nextcloud platform itself to attempt the blind insertion.
Organizations utilizing Nextcloud Tables should prioritize immediate upgrade to version 0.8.0 or later to remediate this vulnerability. The security patch addresses the core authorization bypass by implementing proper access control checks before allowing any data insertion operations. Additionally, system administrators should conduct comprehensive audits of table permissions and access controls to identify any potential exploitation that may have occurred prior to patch deployment. This vulnerability aligns with CWE-285, which addresses insufficient authorization in software applications, and corresponds to attack patterns described in the MITRE ATT&CK framework under privilege escalation and data manipulation techniques. Organizations should also consider implementing network monitoring to detect unusual insertion patterns that might indicate exploitation attempts, as the vulnerability does not require elevated privileges to be effective.