What’s Vulnerable › Vulnerabilities

CVE-2026-39587: WordPress WP BASE Booking plugin <= 5.9.0 - Privilege Escalation vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-15 · updated 2026-10-25
• Weakness: CWE-266

Description

Unauthenticated Privilege Escalation in WP BASE Booking <= 5.9.0 versions.

Affected products

• Hakan Ozevin WP BASE Booking: through 5.9.0

References

• https://patchstack.com/database/wordpress/plugin/wp-base-booking-of-appointments-services-and-events/vulnerability/wordpress-wp-base-booking-plugin-5-9-0-privilege-escalation-vulnerability?_s_id=cve

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