What’s Vulnerable › Vulnerabilities

CVE-2022-1463: Booking Calendar <= 9.1 - PHP Object Injection via Shortcode

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-10 · updated 2026-06-17
• Weakness: CWE-502

Description

The Booking Calendar plugin for WordPress is vulnerable to PHP Object Injection via the [bookingflextimeline] shortcode in versions up to, and including, 9.1. This could be exploited by subscriber-level users and above to call arbitrary PHP objects on a vulnerable site.

Affected products

• codepeople Booking Calendar Contact Form: through 9.1

References

• https://www.wordfence.com/blog/2022/04/php-object-injection-in-booking-calendar-plugin/
• https://www.wordfence.com/blog/2022/04/php-object-injection-in-booking-calendar-plugin/

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