How severe is CVE-2022-1463?

CVE-2022-1463 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-1463 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-1463?

CVE-2022-1463 affects Booking Calendar Project Booking Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-1463?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-1463 published?

CVE-2022-1463 was published on 2022-05-10 and last updated on 2026-06-17.

CVE-2022-1463

CVE-2022-1463 is a high-severity vulnerability in Booking Calendar Project Booking Calendar with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Booking Calendar Project Booking Calendar
Published: 2022-05-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-1463?: 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.
How severe is CVE-2022-1463?: CVE-2022-1463 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-1463 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-1463?: CVE-2022-1463 affects Booking Calendar Project Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-1463?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-1463 published?: CVE-2022-1463 was published on 2022-05-10 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:booking_calendar_project:booking_calendar:*:*:*:*:*:wordpress:*:*

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