CVE-2026-59541
HighCVSS 8.8Summary
The WP BASE Booking plugin version 6.3.1 and earlier allows a user with the Subscriber role to escalate their privileges. An attacker can gain access to functions reserved for administrators.
Risk Assessment
The organization is at risk of complete takeover of the booking system and potentially the entire WordPress installation.
Recommendation
Update the WP BASE Booking plugin to a version above 6.3.1 that blocks privilege escalation by subscribers.
Other vulnerabilities in WP BASE Booking
See all- CVE-2026-73402Medium
Subscriber Cross Site Scripting (XSS) in WP BASE Booking <= 6.3.2 versions.
- CVE-2026-103352Critical
The WP BASE Booking plugin (wp-base-booking-of-appointments-services-and-events) is vulnerable to Blind SQL Injection due to improper neutralization of special elements in an SQL command. The vulnerability affects versions up to 6.4.0.
- CVE-2026-61962Critical
Unauthenticated Arbitrary Code Execution vulnerability in WP BASE Booking versions up to 6.3.0. An attacker can execute arbitrary code without authentication.
- CVE-2026-103066High
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WP BASE WP BASE Booking wp-base-booking-of-appointments-services-and-events allows Blind SQL Injection. This issue affects WP BASE Booking: from n/a through 6.4.0.
- CVE-2026-39587High
There is a vulnerability in WP BASE Booking versions up to 5.9.0 that allows unauthenticated privilege escalation.
Original NVD description (English source)
Subscriber Privilege Escalation in WP BASE Booking <= 6.3.1 versions.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS