CVE-2026-61985: Car Rental Manager Auth Bypass Flaw

CVE-2026-61985 Overview

CVE-2026-61985 is a missing authorization vulnerability in the magepeopleteam Car Rental Manager plugin for WordPress. The flaw stems from incorrectly configured access control security levels within the car-rental-manager plugin. It affects all versions up to and including 1.3.7. Unauthenticated attackers can reach protected functionality over the network without user interaction. The weakness is categorized as [CWE-862] Missing Authorization. Successful exploitation results in limited integrity impact, allowing modification of data that should be restricted to authorized users.

Critical Impact
An unauthenticated remote attacker can invoke plugin actions that lack proper authorization checks, enabling unauthorized modification of Car Rental Manager data on affected WordPress sites.

Affected Products

magepeopleteam Car Rental Manager (car-rental-manager) WordPress plugin
All versions from n/a through 1.3.7
WordPress sites running the vulnerable plugin release

Discovery Timeline

2026-07-13 - CVE-2026-61985 published to NVD
2026-07-13 - Last updated in NVD database

Technical Details for CVE-2026-61985

Vulnerability Analysis

The Car Rental Manager plugin exposes plugin endpoints or actions without validating whether the requesting user holds the required capability. This is a classic broken access control pattern in WordPress plugins, where an admin-ajax.php action or REST route is registered but omits a current_user_can() check or a nonce validation tied to a privileged role.

The attack requires no authentication, no user interaction, and low complexity. The confidentiality and availability impacts are none, while integrity impact is limited. In practice this maps to state-changing operations affecting plugin-managed data such as bookings, vehicle records, or configuration entries.

The Patchstack advisory tracks this as a broken access control issue in versions through 1.3.7. Site owners running affected versions expose these actions to any unauthenticated visitor on the internet.

Root Cause

The root cause is the absence of authorization checks on one or more plugin request handlers. Under [CWE-862], the code performs a sensitive operation without confirming that the caller is permitted to perform it. WordPress plugins typically enforce this through capability checks (current_user_can()), nonce validation (check_ajax_referer()), or REST permission_callback functions. When these are missing, any HTTP request that satisfies routing requirements reaches the vulnerable handler.

Attack Vector

An attacker sends crafted HTTP requests to the WordPress site hosting the vulnerable plugin. Because the vector is network-based and requires no privileges, mass scanning against WordPress installations is straightforward. The attacker targets exposed plugin actions to trigger unauthorized state changes. Refer to the Patchstack Vulnerability Advisory for the specific action names and parameters.

Detection Methods for CVE-2026-61985

Indicators of Compromise

Unauthenticated POST requests to /wp-admin/admin-ajax.php referencing car-rental-manager actions from unfamiliar IP addresses.
Unexpected modifications to Car Rental Manager bookings, vehicles, or settings without corresponding administrator activity in audit logs.
Requests to plugin REST routes under /wp-json/ that succeed without an authenticated session cookie or nonce header.

Detection Strategies

Review web server access logs for requests targeting Car Rental Manager endpoints originating from anonymous sources.
Correlate database changes in plugin-managed tables with authenticated administrator sessions to surface out-of-band modifications.
Deploy a WordPress security plugin or web application firewall rule that alerts on unauthenticated calls to plugin AJAX actions.

Monitoring Recommendations

Enable WordPress audit logging to record administrative actions and plugin state changes.
Forward web server and application logs to a centralized analytics platform for rule-based alerting on plugin action abuse.
Track the plugin version inventory across managed WordPress sites and alert when versions at or below 1.3.7 are detected.

How to Mitigate CVE-2026-61985

Immediate Actions Required

Identify all WordPress installations running Car Rental Manager 1.3.7 or earlier.
Update the plugin to a version above 1.3.7 as soon as the vendor publishes a patched release.
If no patched release is available, deactivate and remove the plugin until a fix is released.
Audit plugin-managed data for unauthorized changes made prior to remediation.

Patch Information

At the time of publication, the Patchstack advisory lists affected versions through 1.3.7. Monitor the Patchstack Vulnerability Advisory and the plugin's WordPress.org page for a fixed release. Apply the update through the WordPress admin dashboard or via wp-cli once available.

Workarounds

Restrict access to the WordPress site with a web application firewall that blocks unauthenticated requests to Car Rental Manager AJAX and REST endpoints.
Disable the plugin via the WordPress admin console or by renaming its directory under wp-content/plugins/ until a patch is applied.
Limit administrative and plugin endpoint exposure by IP allowlisting where operationally feasible.

bash

# Deactivate the vulnerable plugin using wp-cli
wp plugin deactivate car-rental-manager

# Update once a patched release is published
wp plugin update car-rental-manager

# Verify installed version
wp plugin get car-rental-manager --field=version