CVE-2026-25334: Salon Booking System Pro Vulnerability

CVE-2026-25334 Overview

CVE-2026-25334 is an Incorrect Privilege Assignment vulnerability [CWE-266] in the wordpresschef Salon Booking System Pro WordPress plugin (salon-booking-plugin-pro). The flaw affects all versions up to and including 10.30.12 and enables account takeover through privilege escalation. An unauthenticated network-based attacker can leverage the weakness to gain elevated access to a WordPress site running the plugin. Successful exploitation impacts confidentiality, integrity, and availability of the affected site. The vulnerability is tracked by Patchstack as an account takeover issue and was published to the National Vulnerability Database (NVD) on March 25, 2026.

Critical Impact
Unauthenticated attackers can escalate privileges and take over accounts on WordPress sites running Salon Booking System Pro through version 10.30.12.

Affected Products

wordpresschef Salon Booking System Pro (salon-booking-plugin-pro)
All versions from initial release through < 10.30.12
WordPress installations with the plugin enabled

Discovery Timeline

2026-03-25 - CVE-2026-25334 published to NVD
2026-04-24 - Last updated in NVD database

Technical Details for CVE-2026-25334

Vulnerability Analysis

The vulnerability is classified as Incorrect Privilege Assignment [CWE-266]. The Salon Booking System Pro plugin assigns privileges to user accounts in a manner that does not correctly enforce the intended authorization boundary. An attacker who interacts with the plugin over the network can obtain privileges beyond those granted to a normal customer or unauthenticated visitor. Patchstack categorizes the resulting condition as an account takeover.

The attack vector is network-based and requires no authentication or user interaction. The plugin operates within the WordPress request lifecycle, so any reachable site with a vulnerable plugin version is exposed. Attack complexity is elevated, indicating the attacker must satisfy specific conditions during exploitation. Successful exploitation grants high impact across confidentiality, integrity, and availability.

Root Cause

The root cause is improper privilege assignment within the plugin's account handling logic. The plugin grants a role, capability, or session context that exceeds what should be authorized for the requesting actor. This pattern typically appears when registration, profile update, or booking endpoints accept a role or user identifier from client-controlled input, or when an authorization check is missing on an account-management code path.

Attack Vector

Exploitation occurs over HTTP/HTTPS against a WordPress site exposing the vulnerable plugin endpoints. An attacker crafts a request that triggers the flawed privilege-assignment routine, resulting in elevated access to an existing account or a newly created account with administrator-equivalent capabilities. With administrator capabilities, the attacker can install plugins, modify content, exfiltrate user data, and establish persistence on the site. No verified public exploit code is available at the time of publication. See the Patchstack Vulnerability Advisory for technical details.

Detection Methods for CVE-2026-25334

Indicators of Compromise

Unexpected user accounts with administrator or elevated WordPress roles created after plugin installation
Role changes on existing accounts recorded in the wp_usermeta table for the wp_capabilities key
Anomalous POST requests to Salon Booking System Pro endpoints under /wp-admin/admin-ajax.php or plugin REST routes
New plugin or theme installations, or modifications to wp-config.php, that correlate with role-change events

Detection Strategies

Inventory all WordPress sites and identify installations of salon-booking-plugin-pro at version 10.30.12 or earlier.
Audit the WordPress user table for accounts created during the exposure window and validate each role assignment against business records.
Correlate web server access logs with WordPress audit logs to identify requests that preceded role escalations.

Monitoring Recommendations

Enable a WordPress audit log plugin to capture user role changes, account creation, and capability updates.
Forward WordPress and web server logs to a centralized analytics platform for retention and correlation.
Alert on any privilege escalation event affecting accounts that interact with booking or salon plugin endpoints.

How to Mitigate CVE-2026-25334

Immediate Actions Required

Update Salon Booking System Pro to a version later than 10.30.12 as soon as a fixed release is available from the vendor.
Review all administrator and editor accounts and remove any account that cannot be attributed to a legitimate user.
Reset passwords and invalidate active sessions for all privileged WordPress accounts on affected sites.
Rotate WordPress secret keys in wp-config.php to force re-authentication of all users.

Patch Information

A fixed version addressing CVE-2026-25334 must be obtained from the plugin vendor. Refer to the Patchstack Vulnerability Advisory for the latest patched version and remediation guidance. Versions through 10.30.12 are affected.

Workarounds

Deactivate and remove the Salon Booking System Pro plugin until a patched version is installed.
Restrict access to wp-admin and plugin endpoints using IP allow-lists or a web application firewall.
Enforce multi-factor authentication on all WordPress administrator accounts to limit the impact of credential or session compromise.

bash

# Configuration example: disable the vulnerable plugin via WP-CLI
wp plugin deactivate salon-booking-plugin-pro
wp plugin delete salon-booking-plugin-pro

# Identify administrator accounts for review
wp user list --role=administrator --fields=ID,user_login,user_email,user_registered