CVE-2025-66526 Overview
CVE-2025-66526 is a missing authorization vulnerability in the Essekia Tablesome WordPress plugin. The flaw affects all versions up to and including 1.1.34 and stems from incorrectly configured access control security levels. An authenticated attacker with low privileges can exercise plugin functionality that should be restricted to higher-privileged roles. The weakness is tracked as [CWE-862: Missing Authorization] and is exploitable over the network without user interaction.
Critical Impact
An authenticated attacker with low privileges on a vulnerable WordPress site can bypass authorization checks in Tablesome and modify plugin-controlled data, impacting content integrity.
Affected Products
- Essekia Tablesome WordPress plugin versions up to and including 1.1.34
Discovery Timeline
- 2025-12-09 - CVE-2025-66526 published to NVD
- 2026-10-07 - Last updated in NVD database
Technical Details for CVE-2025-66526
Vulnerability Analysis
Tablesome is a WordPress plugin that manages tables, form submissions, and workflow automations. The plugin exposes functionality through administrative actions that must enforce capability checks before executing privileged operations. In versions through 1.1.34, one or more of these actions fail to validate the caller's role or capability properly. An authenticated user with a low-privilege account, such as a subscriber or contributor, can therefore invoke operations intended for administrators or editors.
The impact is limited to integrity, as reflected in the CVSS metrics. Confidentiality and availability are not directly affected, but tampering with plugin-controlled data can affect downstream workflows, form submissions, or published site content.
Root Cause
The root cause is missing authorization logic, categorized as [CWE-862]. The affected endpoints lack current_user_can() capability checks or rely on access control decisions that are incorrectly scoped. As a result, authorization is enforced only at the authentication layer, not at the action layer where sensitive operations execute.
Attack Vector
Exploitation requires network access to the WordPress site and a valid low-privilege account. The attacker sends a crafted request to the vulnerable Tablesome action, typically through admin-ajax.php or a REST endpoint registered by the plugin. Because the plugin does not re-check the user's capabilities, the request completes and modifies plugin state. No user interaction and no social engineering are required.
Technical details are documented in the Patchstack advisory for the Tablesome broken access control vulnerability.
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Stop Identity AttacksDetection Methods for CVE-2025-66526
Indicators of Compromise
- Unexpected modifications to Tablesome tables, form entries, or automation workflows made by non-administrative accounts.
- Requests to Tablesome admin-ajax.php actions or REST routes originating from users with the subscriber or contributor role.
- New or altered plugin configuration entries in the WordPress database without a corresponding administrator audit record.
Detection Strategies
- Review WordPress access logs for POST requests to Tablesome plugin endpoints correlated with low-privilege session cookies.
- Enable WordPress audit logging to capture plugin option changes, user capability usage, and REST API invocations tied to Tablesome.
- Compare the installed Tablesome version against 1.1.34 across all WordPress sites in the environment to identify exposed assets.
Monitoring Recommendations
- Monitor web server logs for authenticated requests to /wp-admin/admin-ajax.php with action parameters associated with Tablesome.
- Alert on privilege-sensitive database writes from accounts that have never held an administrative role.
- Track outbound notifications or integrations configured in Tablesome for unexpected changes, which can indicate workflow tampering.
How to Mitigate CVE-2025-66526
Immediate Actions Required
- Update the Tablesome plugin to the latest version released after 1.1.34 on all WordPress installations.
- Audit existing Tablesome tables, forms, and automations for unauthorized modifications introduced by low-privilege accounts.
- Review and prune WordPress user accounts, removing dormant subscriber and contributor roles that are not required.
Patch Information
Users should upgrade to a Tablesome release that supersedes version 1.1.34. Refer to the Patchstack advisory and the plugin's WordPress.org changelog for the fixed version and remediation notes before deploying.
Workarounds
- Deactivate the Tablesome plugin until a patched version can be installed if immediate upgrade is not possible.
- Restrict access to /wp-admin/admin-ajax.php and the plugin's REST routes using a web application firewall rule that blocks non-administrative users.
- Disable self-registration and reduce the default role for new users to minimize the pool of accounts that can reach the vulnerable actions.
# Configuration example: disable Tablesome via WP-CLI as a temporary workaround
wp plugin deactivate tablesome
wp plugin status tablesome
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
