CVE-2026-107418 Overview
CVE-2026-107418 is a missing authorization vulnerability in the Arraytics Booktics WordPress plugin. The flaw affects all versions up to and including 1.0.28. The plugin fails to enforce proper access control checks on protected functionality, allowing authenticated users with low privileges to perform actions reserved for higher-privileged roles. The vulnerability is tracked under CWE-862: Missing Authorization.
Critical Impact
Authenticated attackers with low-level privileges can exploit incorrectly configured access control to read or modify data they should not be able to access, impacting the confidentiality and integrity of booking data managed by the plugin.
Affected Products
- Arraytics Booktics WordPress Plugin versions up to and including 1.0.28
- WordPress sites running Booktics for appointment and booking management
- Multi-user WordPress environments where low-privileged accounts (e.g., Subscriber) can authenticate
Discovery Timeline
- 2026-10-12 - CVE-2026-107418 published to NVD
- 2026-10-13 - Last updated in NVD database
Technical Details for CVE-2026-107418
Vulnerability Analysis
The Booktics plugin exposes functionality through endpoints that do not verify whether the requesting user holds the required capability or role. An authenticated user can invoke these endpoints and perform operations that should be restricted to administrators or booking managers. The attack requires network access and low-level authenticated privileges, with no user interaction needed.
The exposure stems from reliance on authentication alone as a security control. Authentication confirms identity but does not establish authorization. When a plugin skips capability checks such as current_user_can() on sensitive handlers, any logged-in user can reach those code paths.
Exploitation produces limited confidentiality and integrity impact per the advisory, with no direct availability consequence. The practical outcome depends on which endpoints are reachable, but typically includes unauthorized reading or modification of booking records, settings, or related metadata.
Root Cause
The root cause is a missing authorization check on one or more plugin request handlers. The code validates that the caller is logged in but omits a capability or role verification before executing privileged logic. This pattern is characteristic of CWE-862 and commonly appears in WordPress plugins that use admin-ajax.php or REST routes without a permission_callback enforcing capabilities.
Attack Vector
An attacker needs a valid low-privileged WordPress account on the target site. The attacker sends crafted HTTP requests to the vulnerable Booktics endpoints and receives data or triggers state changes without further authorization checks. The Patchstack Vulnerability Report provides additional context on the affected routes.
No public proof-of-concept exploit is listed in the advisory. See the Patchstack report linked above for technical details on the affected handlers.
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Stop Identity AttacksDetection Methods for CVE-2026-107418
Indicators of Compromise
- Unexpected POST or GET requests to Booktics plugin endpoints originating from accounts with Subscriber or Customer roles
- Modification or disclosure of booking records that cannot be attributed to administrator activity in WordPress audit logs
- Spikes in requests to admin-ajax.php or /wp-json/ routes referencing Booktics actions from non-admin sessions
Detection Strategies
- Review WordPress access logs for authenticated requests to Booktics endpoints from users whose roles should not reach that functionality
- Correlate booking data changes with the acting user ID and verify the user holds a role authorized for that action
- Deploy a WordPress audit logging plugin to capture capability-sensitive actions performed through Booktics
Monitoring Recommendations
- Alert on sequential requests from the same low-privileged account that enumerate booking identifiers or iterate through resource IDs
- Monitor for creation, modification, or deletion events on booking resources outside expected administrative sessions
- Track user role distribution and flag anomalous activity from recently registered Subscriber accounts
How to Mitigate CVE-2026-107418
Immediate Actions Required
- Identify all WordPress sites running the Booktics plugin and confirm the installed version against 1.0.28
- Restrict new user registration where possible, or require administrator approval before accounts become active
- Review current user accounts and remove unused or untrusted low-privileged accounts that could be leveraged for exploitation
Patch Information
The advisory indicates the vulnerability affects Booktics from unspecified initial versions through 1.0.28. Site operators should consult the Patchstack Vulnerability Report and the vendor for a fixed release, and update as soon as a patched version is published.
Workarounds
- Temporarily deactivate the Booktics plugin on sites where booking functionality is non-essential until a patched version is available
- Apply a web application firewall rule to block requests to Booktics endpoints from sessions associated with non-authorized roles
- Enforce the principle of least privilege by auditing custom role definitions and removing unnecessary capabilities
# Configuration example: identify Booktics installations and versions via WP-CLI
wp plugin list --name=booktics --fields=name,status,version
# Deactivate the plugin as a temporary mitigation
wp plugin deactivate booktics
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
