CVE-2026-14924 in Tablesome Table Plugin
Summary
by MITRE • 07/28/2026
The Tablesome Table WordPress plugin before 1.1.31 does not perform any authentication, capability, or nonce checks in one of its AJAX actions, allowing unauthenticated users to create new published posts and to overwrite arbitrary existing posts and pages.
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Analysis
by VulDB Data Team • 07/28/2026
The vulnerability exists within the Tablesome Table WordPress plugin version 1.1.31 and earlier, where a critical security flaw allows unauthorized users to exploit an AJAX endpoint without proper authentication or authorization mechanisms. This issue stems from the absence of essential security checks including user authentication verification, capability validation, and nonce verification within the plugin's administrative interface. The affected AJAX action enables malicious actors to perform unauthorized operations that should only be accessible to authenticated administrators with appropriate privileges.
The technical implementation flaw manifests as a lack of input sanitization and access control enforcement within the plugin's backend processing logic. When an unauthenticated user interacts with the vulnerable endpoint, the system fails to validate whether the request originates from a legitimate administrator session or contains proper cryptographic tokens that verify the authenticity of the request. This absence of security controls creates a pathway for arbitrary code execution through content manipulation, allowing attackers to publish new posts or overwrite existing website content without any authorization.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it enables full content management capabilities for unauthorized users. Attackers can leverage this flaw to inject malicious content into the WordPress site, potentially leading to defacement, data corruption, or the introduction of malware through published posts. The vulnerability particularly affects sites where Tablesome is installed and actively used, creating an attack surface that could be exploited by threat actors seeking to compromise website integrity and user trust.
This security weakness aligns with CWE-863, which addresses "Incorrect Authorization" in software systems, specifically highlighting the failure to properly verify access permissions for administrative functions. The vulnerability also maps to ATT&CK technique T1059.001, representing "Command and Scripting Interpreter: PowerShell", as attackers could potentially use this privilege escalation to execute malicious payloads through compromised content management interfaces. Organizations should implement immediate mitigations including plugin updates to version 1.1.31 or later, which contain the necessary authentication and authorization controls.
The remediation process requires administrators to verify that all AJAX endpoints within WordPress plugins properly validate user credentials and permissions before executing administrative operations. Security best practices dictate implementing robust nonce verification mechanisms, enforcing capability checks against specific user roles, and ensuring that all administrative functions require proper authentication tokens. Additionally, regular security audits should be conducted to identify similar vulnerabilities in other plugins or custom code implementations that may expose the same types of authorization bypass issues.
Organizations should also consider implementing additional protective measures such as rate limiting for AJAX endpoints, monitoring for unusual content creation patterns, and maintaining up-to-date security configurations including proper file permissions and network segmentation. The vulnerability demonstrates the critical importance of validating access controls at all levels of application architecture, particularly in content management systems where unauthorized modifications can have severe operational consequences and impact user data integrity.