CVE-2025-15473 Overview
The Timetics WordPress plugin before version 1.0.52 contains a missing authorization vulnerability in a REST API endpoint. Unauthenticated attackers can arbitrarily modify booking payment status and post status for the timetics-booking custom post type. The flaw stems from absent authorization checks on a REST endpoint that handles booking state transitions. This issue is tracked under CWE-862: Missing Authorization.
Critical Impact
Unauthenticated attackers can manipulate booking records by changing payment and post status values without credentials, undermining the integrity of appointment and reservation data managed by the plugin.
Affected Products
- Timetics WordPress plugin versions prior to 1.0.52
- WordPress sites using the timetics-booking custom post type
- Booking and appointment workflows relying on Timetics payment status tracking
Discovery Timeline
- 2026-03-12 - CVE-2025-15473 published to NVD
- 2026-04-15 - Last updated in NVD database
Technical Details for CVE-2025-15473
Vulnerability Analysis
The Timetics plugin exposes a REST API endpoint that updates booking payment status and post status for entries of the timetics-booking custom post type. The endpoint registration does not enforce a permission_callback that validates the caller's identity or capabilities. As a result, any HTTP client can invoke the route without authentication.
Missing authorization on state-changing REST routes is a recurring pattern in WordPress plugins. The vulnerability does not grant code execution or data disclosure, but it allows attackers to alter business-critical records. An attacker can mark unpaid bookings as paid, flip post status values, or otherwise disrupt the booking lifecycle.
The issue requires user interaction according to the CVSS vector, reflecting that the targeted endpoint is reachable through standard web traffic patterns. Impact is limited to integrity, with no direct effect on confidentiality or availability.
Root Cause
The REST endpoint registered by the Timetics plugin omits an effective permission_callback enforcing authentication or capability checks. WordPress treats endpoints without proper permission callbacks as publicly accessible. Combined with logic that writes directly to booking records, the missing check enables unauthenticated state modification.
Attack Vector
An attacker sends a crafted HTTP request to the vulnerable REST route exposed by Timetics on a target WordPress site. The request specifies the target booking identifier and the desired payment status or post status values. The server processes the request without verifying caller identity and applies the changes to the timetics-booking post. No credentials, tokens, or session cookies are required.
The vulnerability mechanism is described in the WPScan Vulnerability Report. No verified public exploit code is available at this time.
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Indicators of Compromise
- Unexpected changes to post_status values on timetics-booking custom post type entries without a corresponding administrator action in audit logs.
- Booking records flipped to a paid payment status without matching payment gateway transaction records.
- HTTP requests to Timetics REST routes from unauthenticated sources targeting booking update endpoints.
Detection Strategies
- Review web server access logs for requests to /wp-json/ routes registered by the Timetics plugin, especially those modifying booking state.
- Correlate booking status changes with WordPress user activity logs to identify modifications not tied to an authenticated administrator.
- Compare payment gateway transaction records against booking payment status values to detect divergence.
Monitoring Recommendations
- Enable verbose logging on the WordPress REST API and forward logs to a centralized analytics platform for query and alerting.
- Alert on anomalous spikes in booking status update requests from a single IP or user agent.
- Track plugin version inventory across WordPress installations and flag any site running Timetics below 1.0.52.
How to Mitigate CVE-2025-15473
Immediate Actions Required
- Upgrade the Timetics plugin to version 1.0.52 or later on all affected WordPress sites.
- Audit existing timetics-booking records for unauthorized payment status or post status changes and reconcile against payment gateway records.
- Restrict access to the WordPress REST API from untrusted networks where feasible until patching is complete.
Patch Information
The vendor addressed the issue in Timetics version 1.0.52 by adding authorization checks to the affected REST endpoint. Refer to the WPScan Vulnerability Report for advisory details and version metadata.
Workarounds
- Apply a web application firewall rule that blocks unauthenticated requests to the vulnerable Timetics REST route until the plugin is updated.
- Temporarily deactivate the Timetics plugin on production sites if updating is not immediately possible and bookings are not actively required.
- Restrict REST API access to authenticated users at the server or reverse proxy layer for sites that do not require public REST endpoints.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
